Add some Drydock documentation plus "Test Configuration" for repository automation
- Adds a "Test" repository operation that just runs git status to see if things work.
- Adds a button for it in Edit Repository.
- Shows operation status on the operation detail view to make this workflow work a little better.
- Adds a lot of words. Words words words words.
- Tested repository operation.
- Read words.
Reviewed By: chad
Differential Revision: https://secure.phabricator.com/D14349