Move data manipulation in monarch-ui to ontobio/biolink-api

[kshefchek]

Due to the natural evolution of the two codebases, the monarch-ui currently does a lot of json manipulation after fetching data from Biolink. Ideally, this would be minimized and biolink would provide the ui a closer representation of what is needed for our views.

Examples:

• Node pages make two calls to Biolink - neighbors, and {type}/{id}, followed by a lot of data manipulation - see Node.vue
• Calls to getNeighborhood are followed by lot's of data munging - see getNeighborhood, this reminds me of "fetchClassInfo" from our legacy app
• Operating on BBOP Graphs browser side, see getNeighborhood above and BBOPGraphUtils.js
• Manipulating evidence EvidenceViewer.vue

[kshefchek]

See related/overlapping
#346
#353