Add FontIcons to PHUIObjectItemView

Summary: Added generic FontIcons for PHUIObjectItemView, used in Almanac Console. Simplified States.

Test Plan:
Almanac Console, UIExamples

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D11527