Add dockerized UUID service to Entity API tests

[maxsibilla]

[tjmadonna]

Ran into issues with Globus authentication in the uuid-api container. Globus auth is being mocked in the entity-api tests so the token is invalid when it's sent to the real uuid-api.

We could possibly address this with the shared authentication service that is being planned.

sennetconsortium/ingest-api#619