R1:8bf59050247d

Add Drydock log types and more logging

Summary: Ref T9252. Make log types modular so they can be translated and have complicated rendering logic if necessary (currently, none have this).

Test Plan: {F855330}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9252

Differential Revision: https://secure.phabricator.com/D14198