Merge changes from topics "icon-interactor", "wifi-networks" into udc-qpr-dev

* changes:
  [QS] Add flag-protected InternetTile backed by new data pipeline
  [Sb refactor] Add network scan results to wifi repo
  [Sb refactor] WIP - InternetTileViewModel
  [Sb refactor] switch broadcast off of BroadcastDispatcher
  [Sb refactor] Add WifiIcon.fromModel for use in QS
  [Sb refactor] EthernetInteractor to support QS tiles
  [Sb refactor] Convert CastTile to use WifiRepository
  [Sb refactor] flag for deprecation of SignalCallback
  [Sb refactor] Remove some unused fields from MobileIconInteractor
  [Sb refactor] Move icon to the interactor