Update prefpane device list on device connect

Is your feature request related to a problem? Please describe. When a device is connected to the computer while the preference pane is open, the dropdown menu does not re-populate to include that controller.

Describe the solution you'd like Utilize the socket connection system to tell the preference pane to update when the daemon gets a device connection notification.

Describe alternatives you've considered Current workaround is to back out and go back in to the preference pane, to force an update.

Additional context The modern-rewrite branch contains a new system for handling the driver enable/disable checkbox. This involves a Bonjour advertised service that has the Daemon operating as a server, with the Preference Pane acting as a client. Utilize this connection on callbackConnected events in the Daemon found in 360Daemon.m. Send a message to the Preference Pane in Pref360ControlPref.m - stream:handleEvent: that lets the Preference Pane know that it needs to update the controller list.

Will likely require a new format to messages sent back and forth between the Daemon and Pref Pane, since the Pref Pane expects an OSReturn and not some indicator of device loading.