Allow TaskFragmentOrganizer to set remote animation

When all windows in the transition is belong to organized TaskFragments,
have the TaskFragmentOrganizer to control the animation on client side.

Bug: 196173550
Test: atest WmTests:TaskFragmentOrganizerControllerTest
Test: atest WmTests:AppTransitionControllerTest
Change-Id: I835467e23863286a5bd34380424cc9eca2c7372f