Mugging Villagers

-Added a mugging interaction to the wandering trader:

• He now fights back when threatened with the assistance of a gun and his llamas
• Killing him in this state will make him drop items from his trade pool.
• He can be returned to normal if given an emerald.

-Added 2 new achievements: Bribery and Law Enforcement.

-Reduced Lil ill's pick up range from 4 blocks to 2.

-Shuffled the file structure around a bit.