feat: Use backend-generated entity names

[liuverta]

Impact and Context

Use backends' automatically-generated human-readable three-word-phrase names.

Risks and Area of Effect

I wonder if experiment run names would ever collide 🤔

Testing

I ran our entire suite in Python 3.9 and it passed!

Here's every entity that implements _create_proto_internal() (besides DatasetVersion, which doesn't use names):

Deployment-api still requires a client-provided path for endpoints (422 Client Error: path in body is required), so it's not included in this change.

How to Revert

Revert this PR.