RecyclerView
TODO:
We needs options to:
* Option to hide on short lists, or when scrolling is inactive (not currently scrolling)
* Option to specify the delay before hiding and showing the bubble (separate for hide and show)
* Horizontal support?
* Callbacks when hiding/showing the bubble and when we should hide/show the handle
* customize visibility animation for bubbleFastScrollBubbleVisibilityAnimation
making sure the bubble has the correct visibilities at the start and end of the animationSimpleElevationItemTouchHelperCallback.updateElevation(RecyclerView, RecyclerView.ViewHolder, boolean)
is above
all others.