Add: Act credit lamp

GameState.py

@@ -1,8 +1,10 @@
 import logging
 from lamps.LampGroup import PLAYER_LAMPS
+from lamps.Lamp import CREDIT
 
 class GameState:
     def __init__(self, players, highscore, specialDisplay, currentPlayerID = 0):
+        CREDIT.activate()
         self.players = players
         self.gameStateID = currentPlayerID
         self.highscore = highscore