Add unit tests for 180 degree rotation

These tests if an app window token reports resize when device is
rotated from landscape to seascape.
There is also some additional plumbing to be able to perform a
rotation in unit test. Also dynamic stacks are now allowed to
influence the orientation of the device.

Test: bit FrameworksServicesTests:com.android.server.wm.AppWindowTokenTests
Bug: 33607506
Change-Id: I7b23e2de48d56c9fe485eae6a165378dbbbd08bb