Update the Applications screen

Add recent applications to the applications settings screen. There are
two new classes (RecentAppsItemManager and InstalledAppCountItemManager)
that are largely taken from mobile and are responsible for fetching
recently used apps and installed non-system apps respectively.

Bug: 181715910
Test: Checked to make sure newly used apps would show up properly, atest
CarSettingsUnitTests

Change-Id: Ia3cfdc414c34b063f0b1524a8a569545fcad5592
18 files changed