Move rotation bounds calculation into SysUI

Also included in this CL
- Cleanup all bounds calculation in PinnedStackController
- Move PipSnapAlgorithm to SysUI

Bug: 139016833
Bug: 139016576
Bug: 145133340
Test: atest PinnedStackTests
Test: atest MultiDisplayActivityLaunchTest
Test: atest MultiDisplaySystemDecorationTests
Change-Id: Ifa0621a1cb69e76498e020aef7d8fa815df4ce48