Add edge effect color APIs to AbsListView

This CL adds APIs to AbsListView to set edge effect colors.
Previously, edge effect fields were accessed via reflection
by many apps to obtain this functionality.
For apps targeting Q, those fields will not be accessible
anymore and instead we'll ask them to use the new APIs.

Bug: 123768444
Bug: 123769408
Test: AbsListViewTest#testEdgeEffectColors
Change-Id: Ia81bb1af9708255cceaabfd6e8ecfd1f12d67798