Waterskullslime

introduced a new enemy, built off fireskull.png and slime.png we have a new dyeable enemy....skullslime.png.

This merge would add 7 new skull slimes.

Note only client data was changed. Im not sure what to do in server data to complete the enemies((stats and levels)). Ideally id like them to be lvl 70-90 enemies with high physical defense and low magical defense.90%/10%