Separate library from SettingsLib

Separated library for following class:
- AdaptiveIcon.java
- AdaptiveIconShapeDrawable.java
- AdaptiveOutlineDrawable.java
- TileUtils.java
- DashboardCategory.java
- Tile.java

Bug: 128570540
Test: RunSettingsLibRoboTests
Change-Id: I616e68f6e5ac9afee805793e80374aabebc69ccb
15 files changed