RegisterVideoEffect in single stream

[kosmokoks]

It will be nice to have possibility to add an effect to just one stream to see only in first server, for example:

if let stream = await netStreamSwitcher.stream {
               currentEffect = Watermark()
               await mixer.screen.registerVideoEffect(currentEffect!)
               await mixer.addOutput(stream)
               if let view = view as? (any HKStreamOutput) {
                   await stream.addOutput(view)
               }
           }
           if let stream2 = await netStreamSwitcher.stream2 {
               await mixer.addOutput(stream2)
               if let view = view as? (any HKStreamOutput) {
                   await stream2.addOutput(view)
               }
           }