Add fixture `showtec/phant-n-75-led`

[FloEdelmann]

• Add fixture showtec/phant-n-75-led

Fixture warnings / errors

• showtec/phant-n-75-led
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/0 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/2 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/3 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/4 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/5 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/6 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/7 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/8 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/9 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/10 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/11 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/12 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/13 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/14 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/15 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/16 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/17 null must be object
  • ❌ File does not match schema: fixture/wheels/Color Wheel/slots/18 null must be object

Thank you logela!