Move Github App creation templates into ./templates

[Waterdrips]

The ofc-bootstrap github app creation command requires some of the files in ./pkg

It would be best to put them in templates so we don't need to copy in pkg if not running from the repo clone.

Expected Behaviour

only need ./templates and ./scripts folders

Current Behaviour

The greate-github-app command needs the files in pkg

Possible Solution

move the templates into the templates folder

Context

I have 6x clusters to manage, keeping the pkg folder in the deployment repo is adding complexity just for 1 file