mocks: Reorganize mock definitions into multiple files
Created by: efritz
Move all _test.go
generated files into mockgen.test.yaml
and all others into mockgen.temp.yaml
. We should try to minimize the number of non-test mocks we generate here, so the second file should go down to zero eventually (wishful thinking).
Other developers are free to add additional team/domain-specific mock files (in other layers of the file hierarchy as well) where meaningful.
Test plan
Ran locally to ensure the same content was generated.