Added support for maxAspectRatio manifest attribute.

- Allows an app to specify the maximum aspect ratio it supports.
- Support for overriding configuration and bounds at the activity
record and app window token level.

Test: cts/.../run-test CtsAppTestCases android.app.cts.AspectRatioTests
Test: bit FrameworksServicesTests:com.android.server.wm.WindowContainerTests
Test: bit FrameworksServicesTests:com.android.server.wm.WindowFrameTests
Bug: 36505427
Bug: 33205955
Bug: 35810513
Change-Id: Ib2d46ed0c546dd903d09d6bb7162a98bd390ba81