Summary: Ref T9722, Add Phurl Remarkup as `((id))` or `((alias))`
Test Plan: Add a comment to any object as `((id))` or `((alias))`. Make sure comment renders as a link.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: Korvin
Maniphest Tasks: T9722
Differential Revision: https://secure.phabricator.com/D14427
