add equip_monster() function.
utilise new equip_monster() function.
fix a bug in the equip_monster() function.
let the main id be 'shield'.
simplify the printing; also we do wieldables first since shields are wielded but will come up wearable.
let 'tower shield' be a secondary id.
complete the balance quest. (perhaps an optional quest can be bringing the lawbringer and the chaosblade to Iustitia?)