resource/gitlab_project: Add many attributes to align with upstream API
This is work in progress and is currently blocked by:
Also missing:
-
Data Source alignment -
Testing
Closes: #636 (closed) Closes: #286 (closed) Closes: #351 (closed) Closes: #928 (closed) Closes: #946 (closed) Closes: #477 (closed) Closes: #541 (closed) Closes: #947