Add a "properties" table to the Repository view in Diffusion

Summary: Notably, expose the clone URI / remote URI, after stripping credentials.

Test Plan: Looked at a repository.

Reviewers: btrahan, nh

Reviewed By: btrahan

CC: aran, epriestley

Maniphest Tasks: T91

Differential Revision: https://secure.phabricator.com/D1811