Add GetCommitSignatures feature flag

Felipe Cardozorequested to merge
add-commit-signatures-feature-flag into master

What does this MR do?

Adds feature flag for GetCommitSignatures RPC. This method was being called in a ruby server in gitaly. We changed it to use only go.

Check: gitaly#1604 (closed)

To enable the feature flag go to development console and do: Feature.enable("gitaly_get_commit_signatures")

Edited by Felipe Cardozo

Merge request reports