App permission page

This page was originally done using separate layouts, but was remade
using preferences.

Also instead of using radio buttons, we've gone ahead and followed a
similar pattern to Roles (using preference summary to denote selected
row).

Bug: 122822231
Test: manual
Change-Id: I5a5b5d48b1adb355f3f8880975117a6497f5efd9
10 files changed