Add No mines mod

Quaver.API/Enums/ModIdentifier.cs

@@ -62,6 +62,7 @@ public enum ModIdentifier : long
         Speed195X = 1L << 42, // Speed 1.95x
         HeatlthAdjust = 1L << 43, // Test mod for making long note windows easier
         NoMiss = 1L << 44, // You miss, you die
+        NoMines = 1L << 45, // Removes mines from the map
 
         SpeedMods = Speed05X | Speed055X | Speed06X | Speed065X | Speed07X | Speed075X | Speed08X | Speed085X | Speed09X | Speed095X | Speed105X | Speed11X | Speed115X | Speed12X | Speed125X | Speed13X | Speed135X | Speed14X | Speed145X | Speed15X | Speed155X | Speed16X | Speed165X | Speed17X | Speed175X | Speed18X | Speed185X | Speed19X | Speed195X | Speed20X
     }

Quaver.API/Helpers/ModHelper.cs

@@ -167,6 +167,9 @@ public static string GetModsString(ModIdentifier mods)
                     case ModIdentifier.NoMiss:
                         modStrings.Add("NM");
                         break;
+                    case ModIdentifier.NoMines:
+                        modStrings.Add("NMN");
+                        break;
                     default:
                         throw new ArgumentOutOfRangeException($"Short string for ModIdentifier: {mod} does not exist.");
                 }

Quaver.API/Maps/Qua.cs

@@ -840,6 +840,11 @@ public void ReplaceLongNotesWithRegularNotes()
                 temp.EndTime = 0;
         }
 
+        /// <summary>
+        ///     Removes all mines from the map.
+        /// </summary>
+        public void RemoveMines() => HitObjects = HitObjects.Where(x => x.Type != HitObjectType.Mine).ToList();
+
         /// <summary>
         ///     Replaces regular notes with long notes and vice versa.
         ///
@@ -1014,6 +1019,9 @@ public void ApplyInverse()
         /// <param name="mods">a list of mods to apply</param>
         public void ApplyMods(ModIdentifier mods)
         {
+            if (mods.HasFlag(ModIdentifier.NoMines))
+                RemoveMines();
+
             if (mods.HasFlag(ModIdentifier.NoLongNotes))
                 ReplaceLongNotesWithRegularNotes();
 
@@ -1543,4 +1551,4 @@ private int MaxObjectTime()
             return max;
         }
     }
-}
+}