R1:7119c9874475

Add a UIExamples page for PHUIBigInfoView

Summary: Fixes the icon bug and builds a basic examples page for future testing.

Test Plan: Visit uiexampls and various types of info views.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D18356