Add flicker tests for non-match parent exit PIP animation

Note that that tests are disabled for PIP2 since we haven't supported
it.

Bug: 356277166
Bug: 380397174
Test: atest BottomHalfExitPipToAppViaIntentTest BottomHalfExitPipToAppViaExpandButtonTest
Flag: com.android.window.flags.better_support_non_match_parent_activity
Change-Id: Ie3d59e3cd6def0a9785b174a5f687ff8e6a8d2a8