R1:10d4eaca6f71

Add Phragment icons

Summary: Ref T4230

Test Plan: Photoshop, Phragment

Reviewers: epriestley

Reviewed By: epriestley

CC: hach-que, Korvin, epriestley, aran

Maniphest Tasks: T4230

Differential Revision: https://secure.phabricator.com/D7850