vilagers modification:
-New mobs: Seller, Dustman
-New structure: shop
-New items including: potions, ores,
-other special items including: wand
-New dimension where Dustmans naturally appear
1. Seller:
-type: -illager,
-occurrence: shop,
-task: selling beer
2. Dustman
-Type: -illager,
-ocurrence: garbage dump dimension,
-task: garbage extraction