LED Feedback from ClipSlots inside grouped tracks

  Ableton Push does not indicate clip slots contained in grouped tracks, because it has no real clip
  inside the ClipSlot
  this patch checks the next 7 Tracks inside that group until it finds a clip with the same slot index.
  the color from that clip is reported to push as LED feedback for the grouped trakcs clip


please note:
  the decompile process did not work correctly so some compare operations worked incorretly
  im not shure if i fixed everything the way it is suposed to work. 
  Live does compile and run in my simple tests without error