R1:99ea7082d6f3

Add a missing transaction query class for panel transactions

Summary: Ref T10054. The daemons look for this but currently can't find it.

Test Plan: Ran daemons, clean exit on profile menu edits instead of permanent failure.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10054

Differential Revision: https://secure.phabricator.com/D15053