Makes the spells shown for wizards at round end correct
Created by: Sprok0
The wizard round end screen now checks the mind's wizard_spells, rather then the body's current spell_list. This mostly means that wizards and apprentices that are decapitated or turned into xenos or whatever properly show what spells they had. Moves some stuff around in add_spell to let apprentice spells and the artificer spell be added to the wizard spells list.