Add support for BooleanState in CustomTile

Added API for a TileService to declare that they are a boolean tile. In
that case, the tiles behave like frameworks tiles when using TB.

Test: atest CustomTileTest
Test: manual, added to DevelopmentTiles and observe behavior
Test: manual, Grayscale behavior doesn't change
Bug: 138579147
Change-Id: I2f2dae90a49897015138ab9615a4a556da623358