add new animation RotatingRainbowBeamerBlack

new animation that disables the lights on the projector side of the room
mostly copied from the kitchenlight effect by tessak9

dmx.py

@@ -6,7 +6,7 @@ from time import sleep
 from typing import Union
 
 from animation import Animation, Off, RandomSingle, Steady, FadeTo, RotatingRainbow, Chase, TwoColor, Caramelldansen, \
-    Hackertours, RotatingRainbowKitchenWhite
+    Hackertours, RotatingRainbowKitchenWhite, RotatingRainbowBeamerBlack
 
 
 def ledlog(value):
@@ -154,6 +154,8 @@ class DMX:
                 animation = Hackertours(self._color)
             elif animation == "kitchenlight":
                 animation = RotatingRainbowKitchenWhite()
+             elif animation == "beamermode":
+                animation = RotatingRainbowBeamerBlack()
             else:
                 raise ValueError(f"No such animation {animation}")
         self._animation = animation