Move Pholio to SearchFields
Summary:
Ref T8441. Ref T7715.
- Update PholioSearchEngine.
- Automatically add project fields.
- Update Paste to support project search.
- Simplify common Query class construction.
Test Plan:
- Searched for pastes.
- Searched for mocks.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7715, T8441
Differential Revision: https://secure.phabricator.com/D13174