System gesture exclusion rects for Views

Allow views to register a list of rects where the device's system UI
should not intercept complex (read: down+move+up) gestures on specific
sub-regions of the view. This should not be used for large-scale,
full-view gesture recognition such as scrolling, but rather for specific
areas such as SeekBar's scroll thumb or DrawerLayout's edge strip for
swiping open a navigation drawer.

Add ability for ViewTreeObserver to observe transformed exclusion rects

Bug: 126360272
Test: atest android.view.cts.SystemGestureExclusionRectsTest
Change-Id: If89b6f66637e40efa12955d6408f6e37b25cb46f