made triggercallback accessible by setter
simplified trafficsignal initalization
made trafficlightcontroller abstract
renamed class
fixed game, refactored
added external controller dummy
added iterable interface to trafficlight controller
added annotations to trafficlight
first version lane-specific traffic lights
first version of new drawing style for trafficlights
transformed s-coordinate for signals and tunnels for reverse direction
(from road coordinate to local roadSegment coordinate)