Build a basic DiffusionPatternSearchView

Summary: Roughs this in a little, kinda basic. Allows for grouping results by page. A bit better on mobile. Would like more content return from conduit though.

Test Plan:
Test CMS, cms, and OMGLOLWTFBBQ, desktop and mobile

{F5099081}

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D18429