[QS] Add header tooltip for long press
Added some hooks in animator to pass along expanded/animating/collapsed
state in a more clear manner. Added tooltip view with the teaser text to
animate in at the top of the view (and fade out either when we start
animating or automatically after 5 seconds).
Added prefs for tracking how often tooltip is shown/hiding it based on
that number.
Updated dimensions for correct spacing (based on redlines).
Test: Visually
Bug:
72528203
Change-Id: Ided991da43fbede43c84c53ef22688d21aabe291
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