diff --git a/package-lock.json b/package-lock.json
index 2b2a3b4..0e34288 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2526,14 +2526,18 @@
       }
     },
     "node_modules/ajv": {
-      "version": "6.12.0",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.0.tgz",
-      "integrity": "sha512-D6gFiFA0RRLyUbvijN74DWAjXSFxWKaWP7mldxkVhyhAV3+SWA9HEJPHQ2c9soIeTFJqcSdFDGFgdqs1iUU2Hw==",
+      "version": "6.12.6",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+      "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
       "dependencies": {
         "fast-deep-equal": "^3.1.1",
         "fast-json-stable-stringify": "^2.0.0",
         "json-schema-traverse": "^0.4.1",
         "uri-js": "^4.2.2"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/epoberezkin"
       }
     },
     "node_modules/ajv-errors": {
@@ -6931,12 +6935,14 @@
     "node_modules/fsevents/node_modules/abbrev": {
       "version": "1.1.1",
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/ansi-regex": {
       "version": "2.1.1",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -6944,12 +6950,14 @@
     "node_modules/fsevents/node_modules/aproba": {
       "version": "1.2.0",
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/are-we-there-yet": {
       "version": "1.1.5",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "delegates": "^1.0.0",
         "readable-stream": "^2.0.6"
@@ -6958,12 +6966,14 @@
     "node_modules/fsevents/node_modules/balanced-match": {
       "version": "1.0.0",
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/brace-expansion": {
       "version": "1.1.11",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
@@ -6972,12 +6982,14 @@
     "node_modules/fsevents/node_modules/chownr": {
       "version": "1.1.4",
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/code-point-at": {
       "version": "1.1.0",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -6985,22 +6997,26 @@
     "node_modules/fsevents/node_modules/concat-map": {
       "version": "0.0.1",
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/console-control-strings": {
       "version": "1.1.0",
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/core-util-is": {
       "version": "1.0.2",
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/debug": {
       "version": "3.2.6",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "ms": "^2.1.1"
       }
@@ -7009,6 +7025,7 @@
       "version": "0.6.0",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=4.0.0"
       }
@@ -7016,12 +7033,14 @@
     "node_modules/fsevents/node_modules/delegates": {
       "version": "1.0.0",
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/detect-libc": {
       "version": "1.0.3",
       "inBundle": true,
       "license": "Apache-2.0",
+      "optional": true,
       "bin": {
         "detect-libc": "bin/detect-libc.js"
       },
@@ -7033,6 +7052,7 @@
       "version": "1.2.7",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "minipass": "^2.6.0"
       }
@@ -7040,12 +7060,14 @@
     "node_modules/fsevents/node_modules/fs.realpath": {
       "version": "1.0.0",
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/gauge": {
       "version": "2.7.4",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "aproba": "^1.0.3",
         "console-control-strings": "^1.0.0",
@@ -7061,6 +7083,7 @@
       "version": "7.1.6",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "fs.realpath": "^1.0.0",
         "inflight": "^1.0.4",
@@ -7079,12 +7102,14 @@
     "node_modules/fsevents/node_modules/has-unicode": {
       "version": "2.0.1",
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/iconv-lite": {
       "version": "0.4.24",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "safer-buffer": ">= 2.1.2 < 3"
       },
@@ -7096,6 +7121,7 @@
       "version": "3.0.3",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "minimatch": "^3.0.4"
       }
@@ -7104,6 +7130,7 @@
       "version": "1.0.6",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "once": "^1.3.0",
         "wrappy": "1"
@@ -7112,12 +7139,14 @@
     "node_modules/fsevents/node_modules/inherits": {
       "version": "2.0.4",
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/ini": {
       "version": "1.3.5",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "engines": {
         "node": "*"
       }
@@ -7126,6 +7155,7 @@
       "version": "1.0.0",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "number-is-nan": "^1.0.0"
       },
@@ -7136,12 +7166,14 @@
     "node_modules/fsevents/node_modules/isarray": {
       "version": "1.0.0",
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/minimatch": {
       "version": "3.0.4",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "brace-expansion": "^1.1.7"
       },
@@ -7152,12 +7184,14 @@
     "node_modules/fsevents/node_modules/minimist": {
       "version": "1.2.5",
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/minipass": {
       "version": "2.9.0",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "safe-buffer": "^5.1.2",
         "yallist": "^3.0.0"
@@ -7167,6 +7201,7 @@
       "version": "1.3.3",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "minipass": "^2.9.0"
       }
@@ -7176,6 +7211,7 @@
       "deprecated": "Legacy versions of mkdirp are no longer supported. Please update to mkdirp 1.x. (Note that the API surface has changed to use Promises in 1.x.)",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "minimist": "^1.2.5"
       },
@@ -7186,12 +7222,14 @@
     "node_modules/fsevents/node_modules/ms": {
       "version": "2.1.2",
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/needle": {
       "version": "2.3.3",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "debug": "^3.2.6",
         "iconv-lite": "^0.4.4",
@@ -7208,6 +7246,7 @@
       "version": "0.14.0",
       "inBundle": true,
       "license": "BSD-3-Clause",
+      "optional": true,
       "dependencies": {
         "detect-libc": "^1.0.2",
         "mkdirp": "^0.5.1",
@@ -7228,6 +7267,7 @@
       "version": "4.0.3",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "abbrev": "1",
         "osenv": "^0.1.4"
@@ -7240,6 +7280,7 @@
       "version": "1.1.1",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "npm-normalize-package-bin": "^1.0.1"
       }
@@ -7247,12 +7288,14 @@
     "node_modules/fsevents/node_modules/npm-normalize-package-bin": {
       "version": "1.0.1",
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/npm-packlist": {
       "version": "1.4.8",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "ignore-walk": "^3.0.1",
         "npm-bundled": "^1.0.1",
@@ -7263,6 +7306,7 @@
       "version": "4.1.2",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "are-we-there-yet": "~1.1.2",
         "console-control-strings": "~1.1.0",
@@ -7274,6 +7318,7 @@
       "version": "1.0.1",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -7282,6 +7327,7 @@
       "version": "4.1.1",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -7290,6 +7336,7 @@
       "version": "1.4.0",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "wrappy": "1"
       }
@@ -7298,6 +7345,7 @@
       "version": "1.0.2",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -7306,6 +7354,7 @@
       "version": "1.0.2",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -7314,6 +7363,7 @@
       "version": "0.1.5",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "os-homedir": "^1.0.0",
         "os-tmpdir": "^1.0.0"
@@ -7323,6 +7373,7 @@
       "version": "1.0.1",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -7330,12 +7381,14 @@
     "node_modules/fsevents/node_modules/process-nextick-args": {
       "version": "2.0.1",
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/rc": {
       "version": "1.2.8",
       "inBundle": true,
       "license": "(BSD-2-Clause OR MIT OR Apache-2.0)",
+      "optional": true,
       "dependencies": {
         "deep-extend": "^0.6.0",
         "ini": "~1.3.0",
@@ -7350,6 +7403,7 @@
       "version": "2.3.7",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "core-util-is": "~1.0.0",
         "inherits": "~2.0.3",
@@ -7364,6 +7418,7 @@
       "version": "2.7.1",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "glob": "^7.1.3"
       },
@@ -7374,22 +7429,26 @@
     "node_modules/fsevents/node_modules/safe-buffer": {
       "version": "5.1.2",
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/safer-buffer": {
       "version": "2.1.2",
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/sax": {
       "version": "1.2.4",
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/semver": {
       "version": "5.7.1",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "bin": {
         "semver": "bin/semver"
       }
@@ -7397,17 +7456,20 @@
     "node_modules/fsevents/node_modules/set-blocking": {
       "version": "2.0.0",
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/signal-exit": {
       "version": "3.0.2",
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/string_decoder": {
       "version": "1.1.1",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "safe-buffer": "~5.1.0"
       }
@@ -7416,6 +7478,7 @@
       "version": "1.0.2",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "code-point-at": "^1.0.0",
         "is-fullwidth-code-point": "^1.0.0",
@@ -7429,6 +7492,7 @@
       "version": "3.0.1",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "ansi-regex": "^2.0.0"
       },
@@ -7440,6 +7504,7 @@
       "version": "2.0.1",
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -7448,6 +7513,7 @@
       "version": "4.4.13",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "chownr": "^1.1.1",
         "fs-minipass": "^1.2.5",
@@ -7464,12 +7530,14 @@
     "node_modules/fsevents/node_modules/util-deprecate": {
       "version": "1.0.2",
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/wide-align": {
       "version": "1.1.3",
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "string-width": "^1.0.2 || 2"
       }
@@ -7477,12 +7545,14 @@
     "node_modules/fsevents/node_modules/wrappy": {
       "version": "1.0.2",
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/fsevents/node_modules/yallist": {
       "version": "3.1.1",
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/function-bind": {
       "version": "1.1.1",
@@ -17976,9 +18046,9 @@
       }
     },
     "ajv": {
-      "version": "6.12.0",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.0.tgz",
-      "integrity": "sha512-D6gFiFA0RRLyUbvijN74DWAjXSFxWKaWP7mldxkVhyhAV3+SWA9HEJPHQ2c9soIeTFJqcSdFDGFgdqs1iUU2Hw==",
+      "version": "6.12.6",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+      "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
       "requires": {
         "fast-deep-equal": "^3.1.1",
         "fast-json-stable-stringify": "^2.0.0",
@@ -21518,19 +21588,23 @@
       "dependencies": {
         "abbrev": {
           "version": "1.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "ansi-regex": {
           "version": "2.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "are-we-there-yet": {
           "version": "1.1.5",
           "bundled": true,
+          "optional": true,
           "requires": {
             "delegates": "^1.0.0",
             "readable-stream": "^2.0.6"
@@ -21538,11 +21612,13 @@
         },
         "balanced-match": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -21550,57 +21626,69 @@
         },
         "chownr": {
           "version": "1.1.4",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "debug": {
           "version": "3.2.6",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ms": "^2.1.1"
           }
         },
         "deep-extend": {
           "version": "0.6.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "delegates": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "detect-libc": {
           "version": "1.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "fs-minipass": {
           "version": "1.2.7",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minipass": "^2.6.0"
           }
         },
         "fs.realpath": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "gauge": {
           "version": "2.7.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "aproba": "^1.0.3",
             "console-control-strings": "^1.0.0",
@@ -21615,6 +21703,7 @@
         "glob": {
           "version": "7.1.6",
           "bundled": true,
+          "optional": true,
           "requires": {
             "fs.realpath": "^1.0.0",
             "inflight": "^1.0.4",
@@ -21626,11 +21715,13 @@
         },
         "has-unicode": {
           "version": "2.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "iconv-lite": {
           "version": "0.4.24",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safer-buffer": ">= 2.1.2 < 3"
           }
@@ -21638,6 +21729,7 @@
         "ignore-walk": {
           "version": "3.0.3",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimatch": "^3.0.4"
           }
@@ -21645,6 +21737,7 @@
         "inflight": {
           "version": "1.0.6",
           "bundled": true,
+          "optional": true,
           "requires": {
             "once": "^1.3.0",
             "wrappy": "1"
@@ -21652,37 +21745,44 @@
         },
         "inherits": {
           "version": "2.0.4",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
         },
         "isarray": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
         },
         "minimist": {
           "version": "1.2.5",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.9.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -21691,6 +21791,7 @@
         "minizlib": {
           "version": "1.3.3",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minipass": "^2.9.0"
           }
@@ -21698,17 +21799,20 @@
         "mkdirp": {
           "version": "0.5.3",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimist": "^1.2.5"
           }
         },
         "ms": {
           "version": "2.1.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "needle": {
           "version": "2.3.3",
           "bundled": true,
+          "optional": true,
           "requires": {
             "debug": "^3.2.6",
             "iconv-lite": "^0.4.4",
@@ -21718,6 +21822,7 @@
         "node-pre-gyp": {
           "version": "0.14.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "detect-libc": "^1.0.2",
             "mkdirp": "^0.5.1",
@@ -21734,6 +21839,7 @@
         "nopt": {
           "version": "4.0.3",
           "bundled": true,
+          "optional": true,
           "requires": {
             "abbrev": "1",
             "osenv": "^0.1.4"
@@ -21742,17 +21848,20 @@
         "npm-bundled": {
           "version": "1.1.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "npm-normalize-package-bin": "^1.0.1"
           }
         },
         "npm-normalize-package-bin": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "npm-packlist": {
           "version": "1.4.8",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ignore-walk": "^3.0.1",
             "npm-bundled": "^1.0.1",
@@ -21762,6 +21871,7 @@
         "npmlog": {
           "version": "4.1.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "are-we-there-yet": "~1.1.2",
             "console-control-strings": "~1.1.0",
@@ -21771,30 +21881,36 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
         },
         "os-homedir": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "os-tmpdir": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "osenv": {
           "version": "0.1.5",
           "bundled": true,
+          "optional": true,
           "requires": {
             "os-homedir": "^1.0.0",
             "os-tmpdir": "^1.0.0"
@@ -21802,15 +21918,18 @@
         },
         "path-is-absolute": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "process-nextick-args": {
           "version": "2.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "rc": {
           "version": "1.2.8",
           "bundled": true,
+          "optional": true,
           "requires": {
             "deep-extend": "^0.6.0",
             "ini": "~1.3.0",
@@ -21821,6 +21940,7 @@
         "readable-stream": {
           "version": "2.3.7",
           "bundled": true,
+          "optional": true,
           "requires": {
             "core-util-is": "~1.0.0",
             "inherits": "~2.0.3",
@@ -21834,37 +21954,45 @@
         "rimraf": {
           "version": "2.7.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "glob": "^7.1.3"
           }
         },
         "safe-buffer": {
           "version": "5.1.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "sax": {
           "version": "1.2.4",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "semver": {
           "version": "5.7.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "set-blocking": {
           "version": "2.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "signal-exit": {
           "version": "3.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "string_decoder": {
           "version": "1.1.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "~5.1.0"
           }
@@ -21872,6 +22000,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -21881,17 +22010,20 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
         },
         "strip-json-comments": {
           "version": "2.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "tar": {
           "version": "4.4.13",
           "bundled": true,
+          "optional": true,
           "requires": {
             "chownr": "^1.1.1",
             "fs-minipass": "^1.2.5",
@@ -21904,22 +22036,26 @@
         },
         "util-deprecate": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "wide-align": {
           "version": "1.1.3",
           "bundled": true,
+          "optional": true,
           "requires": {
             "string-width": "^1.0.2 || 2"
           }
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         }
       }
     },