R1:6f913b71242a

Add Pholio mock view basics

Summary:
Just laying more groundwork out of ready-made UI.

{F22349}

Test Plan: Looked at a mock.

Reviewers: btrahan, chad

Reviewed By: chad

CC: aran

Maniphest Tasks: T2097

Differential Revision: https://secure.phabricator.com/D3832