added imperative implementation of target graphics
added imperative implementation of target graphics

psieg/babelsberg-js,fniephaus/babelsberg-js,babelsberg/babelsberg-js,psieg/babelsberg-js,psieg/babelsberg-js,fniephaus/babelsberg-js,babelsberg/babelsberg-js,fniephaus/babelsberg-js,babelsberg/babelsberg-js,fniephaus/babelsberg-js,psieg/babelsberg-js,babelsberg/babelsberg-js