SKR Pro 1.1 & Neopixel

https://github.com/adafruit/Adafruit_NeoPixel/pull/206 https://github.com/MarlinFirmware/Marlin/issues/14484 g-code: M150 P100 B100 G4 P400 M150 P100 R100 G4 P400 M150 P100 U100 G4 P400 M150 P100 B100 G4 P400 M150 P100 R100 B100 G4 P400 M150 P100 U100 B100 G4 P400 M150 P100 B100 R100 G4 P400 M150 P100 R100 G4 P400 M150 P100 U100 R100 G4 P400 M150 P100 B100 U100 G4 P400 M150 P100 R100 U100 G4 P400 M150 P100 U100 G4 P400 ....