Added interface to get/set colordb

Tools/pynche/Switchboard.py

 class Switchboard:
-    def __init__(self):
+    def __init__(self, colordb):
         self.__views = []
+        self.__colordb = colordb
 
     def add_view(self, view):
         self.__views.append(view)
@@ -8,3 +9,6 @@ class Switchboard:
     def update_views(self, red, green, blue):
         for v in self.__views:
             v.update_yourself(red, green, blue)
+
+    def colordb(self):
+        return self.__colordb