[Redesign] PHUIPagerView

Summary: Ref T8099, Moves AphrontPagerView to PHUIPagerView, converts to standard PHUIButtons and adds some additional features for icon placement on buttons.

Test Plan: Tested Advanced Search and Searching files in Diffusion. Works as expected.

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Maniphest Tasks: T8342, T8099

Differential Revision: https://secure.phabricator.com/D13092

src/applications/diffusion/controller/DiffusionLintDetailsController.php

@@ -66,7 +66,7 @@ final class DiffusionLintDetailsController extends DiffusionController {
 
     $content = array();
 
-    $pager = id(new AphrontPagerView())
+    $pager = id(new PHUIPagerView())
       ->setPageSize($limit)
       ->setOffset($offset)
       ->setHasMorePages(count($messages) >= $limit)