Fixed rotation: home and recents animation

Add support for home and recents animations using the fixed
orientation transform.

When the recent animation is started, the target ActivityRecord is
rotated before being displayed.

Bug: 143053092, 146416687, 147469164
Test: atest WmTests:RecentsAnimationControllerTest
                #testRecentViewInFixedPortraitWhenTopAppInLandscape

Change-Id: I194673d621e8c0e8222306915a60f69e4de53b75