Summary: we are adding an autocomplete service. this diff contains the boilerplate code necessary for getting that service up and running. it currently does nothing

Test Plan: ran in skaffold, made sure service is up and running

Reviewers: zasgar, #engineering

Reviewed By: zasgar, #engineering

Differential Revision: https://phab.corp.pixielabs.ai/D4147

GitOrigin-RevId: 0804f58d7cb3f12eccd5b938c4ebe209c109fffe