feat: Add a check to ensure certain settings are standardized.

[feanil]

This check looks at the settings on all repos and ensures that they are set the same. To begin with the following settings are ensured:

• Issues should be enabled.
• Wikis should be disabled. The confluence wiki should be used.
• Allow auto-merge to be used. (Does not enable auto-merge, just allows committers to enable it on a per PR basis.)
• Branches should be deleted on merge.