feat(GRPC Server): bones of GRPC server

[joshc-slac]

Serves as bones of how client will interact with engine.

• reorganized BT principic things to be in its own module.
• remote calls
  • Added grpc server, protofile, client, and support make method: make gen_grpc
  • Serves to structure client side interaction with sequencing server.
• Various helper functions for thread safe handling of data