Added class aura items, added shop scripts

Class auras are usable items that call an event and unlock the specific
actors the class. Aura just seemed better than ring because a ring is
for one person. Added a couple shop scripts so that the store could sell
only a specific quantity of items. Don't want to buy two rings for
nothing on accident. Reorganized class list, may have messed up scholar
class, idk what the levels were for the skills learned.
Merge branch 'master' of https://github.com/Mid-Boss/Reminiscence