R1:f0396b2f0628

Provide an audit.query method for Conduit

Summary: Conduit access for open audits.

Test Plan: Used test console to run some queries.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran, epriestley

Maniphest Tasks: T904

Differential Revision: https://secure.phabricator.com/D1792