Add a Stacked view for PropertyList
Summary: Turns a Property List into a stacked view like on tablet/mobile. Useful for where text is longer.
Test Plan:
Test a Herald Transcript page
Reviewers: btrahan, epriestley
Reviewed By: epriestley
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D8891