1.2.0-alpha02

Dependency Updates:

Dependency	Previous version	New version
coordinatorlayout	1.1.0-beta01	1.1.0-rc01
viewpager2	1.0.0-beta05	1.0.0-rc01

Library Updates:

• Accessibility updates and documentation improvements.
• BadgeDrawable
  • Add support for vertical & horizontal offset (632675e)
• BottomAppBar
  • Add ability to enable/disable bottom inset padding (b9f8ee9) (67491fc)
• ChipGroup
  • Add support for requiring a selected chip via selectionRequired attr (573efa4)

Full set of changes: 1.2.0-alpha01...1.2.0-alpha02