atkData for hitboxes

When a player is hit by an attack, they will read the "atkName" string of the hitbox that touched them and read the method in "char?Data" for the specific attack. Then they will respond accordingly.

Ex. Player 2 hit by "standLP" Player 2 reads entry for "standLP" in class "char1Data" Player 2 subtracts "DMG" from HP. Sets hitstun to "hitStun" located in char1Data.standLP().