Option to enable "Link lights to music"

1. This would require setting up a microphone somewhere that would listen to the music that is played in Hubben. HueGo could then, if enabled, query the microphone setup(maybe a small local web server) for what color to give the lights.

2. Spotify and Hue has an integration in the app. Maybe there is an API that can be used instead of having to translate sound to color by ourselves.