Summary:
Ref T2222. This isn't complete and doesn't change runtime behavior yet (the new fields are not glued to the interface), but implements many fields.
(The remaining fields have something weird going on with them, for the most part.)
Test Plan:
With additional changes, rendered most fields sensibly:
{F118834}
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2222
Differential Revision: https://secure.phabricator.com/D8354
