Drag bubble in bubble bar to other side

Adds support to pin bubble bar to other side of the screen by dragging
from one bubble. The entire bubble bar will move to the other side.
Implements the BaseBubbleBarPinController to handle dragging an
individual BubbleView.
Updates how translation and alpha get applied during BubbleBarView
location animation when a bubble is being dragged.
Dragged bubble is part of the BubbleBarView and when it is being
dragged, and we animate the bubble bar to the other side, we need to
ensure that the animation does not affect the dragged bubble.
Updating the translation and alpha for the BubbleBarView ViewGroup will
affect the dragged bubble as well. Updating how translation and alpha
gets applied to BubbleBarView so that it gets applied to individual
child views and then we can skip applying it to the dragged view.

Bug: 330585402
Flag: ACONFIG com.android.wm.shell.enable_bubble_bar DEVELOPMENT
Test: drag bubble from expanded bubble bar to left and right

Change-Id: I1fe2ba9fd466ff97d3b3af763bdcce30c3f98606