debug handledamage

atm, handledamage can change all damage part every hit so, you can Heal player with a hit !
I change the calcul for damage : i add new damage to current player damage and set new partdamage to player.

i add a 1 sec allowDamage false on knockdown for prevent death with shotgun etc.

and finaly i fix "break legs" features with an eventhandlers animchange.

enjoy