Merge changes from topic "media_output_dialog" into rvc-qpr-dev

* changes:
  Apply animation for Media Ouput Switcher dialog
  Add dynamic item in output switcher if it is available
  Fix NPE when notification icon is empty
  Fix output switcher didn't show album art
  Add dynamic group operation in output switcher
  Enhancement for group operation in output switcher
  Add dismiss timing for Media Output Dialog
  Update OutputSwitcher from SettingsPanel to MediaOutputDialog in SystemUI
  Add constant for dismiss Settings panel
  Add animation when switching output device
  Add dismiss intent and method for MediaOutputDialog
  Add "Stop" button for remote device
  Add constant for dialog dismiss
  Rename MediaOutDialogReceiver to MediaOutputDialogReceiver
  Add getFeatures() for get device supporting features
  Add a receiver to launch Output Switcher dialog
  Add MediaOutputDialogFactory to create MediaOutputDialog
  Add Media Output Dialog for Output Switcher
  Add controller for Media operation
  Add MediaOutputAdapter for Media device list
  Define strings for output switcher dialog in SystemUI
  Add image utility methods