Added goals for "FOLLOW" and "UNFOLLOW", so Mob Entity types will follow the player. Refactored some code, to make this cleaner. GPT 3.5 still struggles to output the behaviors correctly, so I updated to GPT 4 Turbo.

Improve chat prompt to include behaviors: <FOLLOW> <FRIENDSHIP> <UNFOLLOW>, etc... Added code to detect separate these behaviors from the cleaned message. Also, better detection of character sheets (making the - optional).