Adding pages for customization drawer with initial implementation of proposed flow
layout for widgets. Fixes for keeping all apps, and widgets in sync with Launcher
Model, optimizations for reloading all apps pages when invalidating. Adding some
animations for tab transitions and feedback when long pressing to add certain items.
Change-Id: I8d51749f3a91c964bed35681f3a9192200b0d93e
Adding SimpleWorkspace, SimpleCellLayout and an AllApps implementation of the SimpleWorkspace.
Making SimpleWorkspace support content with smaller dimensions than the workspace dimensions
itself. Temporary change to AllApps tabs styling until we get new assets for tabs in general.
Change-Id: Ibe3c56603223853d232816b6695e4ddd757857ba
Winson Chung