Ability to stop adding devices to known_devices.yaml (extra flag for devices_trackers?)

Feature Requests
5

Yes. And it is my first entry in device trackers (which for some reason also has impact, see here)

  - platform: googlehome
    host: 192.168.1.190
    rssi_threshold: -100
    interval_seconds: 8
    consider_home: 400
    new_device_defaults:
      track_new_devices: false
      hide_if_away: false