Implement partitioned tiles prototype

This shows groups up large tiles at the top, small tiles at the bottom.
Edit mode uses a column with different lazy grids which has two advantages:
1. Ability to show different backgrounds to tile sections
2. Uses fade in/fade out animations when a tile changes sections, uses translation when a tile moves within a section

I also decided to set this layout as the default one, replacing InfiniteGridLayout

Flag: com.android.systemui.qs_ui_refactor
Test: manually with QSActivity
Fix: 337011122

Change-Id: Iee5726139445ed729748bbcb508618724f169722