R1:8769759c153c

Add a project history controller to Releeph

Summary: Ref T3663. There's no data recorded in this table yet, but add the UI and controller for it. Edits and such will eventually go here.

Test Plan: Clicked "View History" on a project, got an empty but non-broken page.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T3663

Differential Revision: https://secure.phabricator.com/D6785