Add a script to setup consistent repo settings

[AlexSkrypnyk]

When managing multiple repositories, there is a significant effort required to setup configuration of the Github repos. While org-wide repo settings exist, personal repos do not have those settings available.

Need to find a solution that will be using some sort of config file to control the repo settings.

Similar to https://github.com/drevops/drevops/blob/develop/scripts/drevops/github-labels.sh, we need to have a quick way to configure a GitHub repo using a script.

The script should handle:

• General settings
• Labels
• Protected branches