Find also lamps with newer firmware

- since firmware 1.25, the string in USB descriptor has been changed
  from 'PunchLight USB' to 'PunchLightLAMP'
Add more color slots (fw 1.27 and newer), remove flash slot

- since firmware 1.27, support for triggering of all 6 currently
  available color slots (via utility MIDI port) has been added
- on older firmware, only the first two slots can be triggered,
  triggers for other slots will be ignored by the unit