Support RecyclerView notifications in items

Propagate the recycler view notifications
notifyItem{Changed/Removed/Inserted} in ItemHierarchy so that
recycler view animations can be used with ItemHierarchy more
easily.

Test: ./gradlew connectedAndroidTest test
Bug: 36388000
Change-Id: I583952044995b174baec2610422611f6d40a9a11