feat(#10706): port lineage manipulation helpers for hierarchy operations

[vikrantwiz02]

Summary

First bit of the move work, the next operation in #10706 after delete. This one's just groundwork, no endpoint yet. It ports the lineage helpers from cht-conf that the move (and later merge) service will need, so it's only plain functions with tests for now.

These don't exist server-side, so I put them in a new api/src/services/hierarchy/ folder:

• replace-lineage.js rewrites a doc's parent/contact lineage in place. It's got a merge flag for the merge variant too, so this'll cover the merge case later as well.
• lineage-manipulation.js has createLineageFromDoc and pluckIdsFromLineage, and re-exports the replace-lineage functions.

Couple of things I changed from cht-conf, shout if you'd rather I didn't:

• Left out cht-conf's minifyLineagesInDoc. It's basically a copy of minify from @medic/lineage, which we already have here and does a bit more (recursion guard, data_record cleanup), so the move service will just use that instead of carrying another copy.
• Switched the function declarations to arrow functions to keep eslint happy. cht-conf doesn't have the func-style rule but we do.

Changes

• api/src/services/hierarchy/replace-lineage.js
• api/src/services/hierarchy/lineage-manipulation.js
• api/tests/mocha/services/hierarchy/replace-lineage.spec.js
• api/tests/mocha/services/hierarchy/lineage-manipulation.spec.js

npm run unit-api: lint clean, 13 passing.