Add new APIs to AnimationUtils that set and get expectedPresentationTimeNano

Add two methods:
1. void lockAnimationClock(long vsyncMillis, long expectedPresentationTimeNano)
allows developers to pass expectedPresentationTimeNano to the class.
2. long expectedPresentationTimeNano() allows developers to get current value of the expectedPresentationTimeNano (if available).

Bug: 283122385
Test: atest ChoreographerTest
Test: atest AnimationUtilsTest
Change-Id: Iafe6728b012829b73bc5602521d62652360fd861