Open windows for all block's that have an inventory type.

When right click on block Open InventoryType windows for:
Anvil, Brew Stand, Beacon, Enchantment Table, Dropper, Hopper, Dispenser, Crafting Table, Furnace
These are methods that need to be implemented, they are defined in space maniac's master branch
https://github.com/SpaceManiac/Glowstone/blob/master/src/main/java/net/glowstone/entity/GlowHumanEntity.java