Fix All Apps Search plugin shortcut icon redrawing issue.

BubbleTextViews animate the update from their placeholder icons to their high res icons. Added a field to allow restricting what BubbleTextViews' icon updates should be animated. Updated SearchResultIconRow to store the icon Drawable rather than the resource id to prevent unecessary redrawing.

Fixes: 170966269

Demo: https://drive.google.com/file/d/1FBdEl11mHZk1SpCMRY4XZAGt5TVZ01W4/view?usp=sharing

Change-Id: Ib55dafdf5b5fed00d343af5f95f3dd3f08c4ee8e