vcfGenotypeLookup() : add to params : SNP names array

[Don-Isdale]

Part of #383

Observable outcomes / Acceptance criteria :

This will be tested via the API when it is added.

Measured with :

Log activity showing correct search command.
JSON and / or screenshots showing request and response - containing correct result.

---

• [3-6H] services/data vcfGenotypeLookup() : add to params : SNP names array
  [feature/workingGroup3_383_GenotypeSearch bac6680] add genotype-search

[Don-Isdale]

Completed

The work recorded in the first comment (bac6680 - the initial commit for the MVP) is all that is required for this item - no further work is required.