Task 3. Create Zombies and start following the hero! When green flag is pressed: * Hide current zombie * Forever loop and wait for random time (say 1.0-2.0 seconds) * Create a clone of the zombie When Zombie is cloned: * Move to zombie to the right hand edge (X = 250, y = Random from -170 to 170) * Show * In forever loop: * Point to hero * Move one step