Changed names from motor_A motor_B to motor_this_way motor_that_way 

When using these examples we found it clearer with these names when using these sketches @FH-Potsdam
The names motor_A and motor_B lead us to think that we are using 2 motors. Not one motor with two directions.  
modified:   de/Arduino/Fritzing Creator Kit/Motor/Motor.ino
modified:   en/Arduino/Fritzing Creator Kit/Motor/Motor.ino