added reprs for Deck and Card classes
added reprs for Deck and Card classes

PyClass/PyClassLessons,noisebridge/PythonClass,razzius/PyClassLessons,razzius/PyClassLessons,noisebridge/PythonClass,PyClass/PyClassLessons,razzius/PyClassLessons,noisebridge/PythonClass,razzius/PyClassLessons,PyClass/PyClassLessons,noisebridge/PythonClass