cc iron's spells sng

added spell maker block custom spells can only be used on custom spell books fairly simple spell making process custom spells cannot be used with inscription table as iron spells is hard coded in a way where every single spell needs spell icon thoug would be 15kb to 90kb with future version using iron spells as a core for a core thats a side core for a core this mod is only 3.3k kb compat with most entitys large selection of custom grenade sprites to choose from as well please review and comment any bugs would appreciate