DeviceDiscoveryUI tvOS 15.4 to 16.0 API Differences

DDDevicePickerViewController.h
Added DDDevicePickerViewController
Added +[DDDevicePickerViewController isSupportedForBrowseDescriptor:parameters:]
Added -[DDDevicePickerViewController initWithBrowseDescriptor:parameters:]
Added -[DDDevicePickerViewController setDevicePickerCompletionHandler:]
DeviceDiscoveryUIDefines.h
Added #def DeviceDiscoveryUI_EXTERN