Grapple Fixing

Ive done a bit of grapple bug fixing and tweaks, firstly ive added a default shot fired like a tracer to see where you fire as at the moment we have no crosshair. Im going to swap this out with whatever our grapple fires at a later date, most likely a length of rope with a hook object on the end.  Ive also fixed the problem in which the character could fly off in random directions, now he is constrained to the sidescrolling plane.