[APM] Adds unit test for APM service maps transform#7

Merged

mistic merged 2 commits intomistic:upgrade-lodash-4-finalfrom ogupte:apm-upgrade-lodash-4-final-service-maps

Jun 28, 2020

+1,685-222

Commits on Jun 26, 2020

Adds a snapshot unit test for getConnections and rearranges some code to make testing easier
ogupte
committed
reverts ArrayList back to String[] in the painless script within fetch_service_paths_from_trace_ids.ts
ogupte
committed