R1:42ddad1bc8b0

Add project.query to Conduit

Summary: Add a conduit method to query project information.

Test Plan: Ran method from API test console.

Reviewers: bill, btrahan, jungejason

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T681

Differential Revision: https://secure.phabricator.com/D1444