Summary:
Ref T12313. This puts a UI on revoking credentials after a widespread compromise like Cloudbleed or a local one like copy/pasting a token into public chat.
For now, I'm only providing a revoker for conduit tokens since that's the immediate use case.
Test Plan:
- Revoked in user + type, everything + user, everywhere + type, and everything + everywhere modes.
- Verified that conduit tokens were destroyed in all cases.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T12313
Differential Revision: https://secure.phabricator.com/D17458
