Write RemoteViews actions to proto (3/3)

This change adds support for writing the following RemoteViews actions to
proto:
  SetViewOutlinePreferredRadiusAction
  TextViewDrawableAction
  TextViewSizeAction
  ViewGroupAddAction
  ViewGroupRemoveAction
  ViewPaddingAction
  SetDrawInstructionsAction

Test: RemoteViewsProto test
Bug: 308041327
Flag: android.appwidget.flags.remote_views_proto
Change-Id: I31f012bdad04b7e5c55ee0bb1300eb9bfadd3bde