Allow setting DividerInsetEnd

- Added XML attribute suwDividerInsetEnd, and replaced
  suwDividerInset with suwDividerInsetStart.
- Modified the themes so that the divider insets are set
  automatically. If the activity uses GLIF (v1) or material, and the
  list does not have icons, it should set
    app:suwDividerInsetStart="?attr/suwDividerInsetStartNoIcon"
  in the Glif[Recycler/List]Layout

Test: ./gradlew connectedAndroidTest test
Bug: 37677772
Change-Id: Ia4cb9954dd7e3c59cbc72db8937989557689061b