Agent Purry in Monsterverse

Published for assignment purposes ...
Run "python main.py test" via command prompt in the game directory to play.

Known bug:
Error after battle finishes (current fix: go to main.py line 161 and add "monster_inv_db, item_inv_db, damage_dealt, damage_received" to "monster_inv_db, item_inv_db, oc, damage_dealt, damage_received")