Create CI/CD project via GitHub API should only import the repository
Currently when creating a new CI/CD project via the GitHub API (personal access token or OmniAuth), everything we support is imported from GitHub including issues, merge requests and wiki. This would create a problem if the user wanted switch from GitHub to GitLab at a later date because there would be stale issues and merge requests that already exist, making importing harder. We should also only import the data the user expects.
- Only import the repository, nothing else