Summary: Ref T10939. This adds UI, transactions, etc, to adjust dominion rules.
Test Plan:
- Read documentation.
- Changed dominion rules.
- Created packages on `/` ("A") and `/x` ("B") with "Auto Review: Review".
- Touched `/x`.
- Verified that A and B were added with strong dominion.
- Verified that only B was added when A was set to weak dominion.
- Viewed file in Diffusion, saw correct ownership with strong/weak dominion rules.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T10939
Differential Revision: https://secure.phabricator.com/D15936