Attach Diffusion Pagers to their ObjectBoxView
Summary: Adds the ability to set a pager onto an object box directly and pick up appropriate styles.
Test Plan: grep for renderTablePagerBox, test layouts with and without a pager.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin
Maniphest Tasks: T12604
Differential Revision: https://secure.phabricator.com/D17754