Fix inventories

This PR addresses the following issues:
- Crafting Inventory, as well as Enchanting and Anvils, do not show the proper UI to the player. This is fixed by sending a size of 0 - odd, but apparently that's Mojang.
- Many block inventories would no be opened when right-clicking.
- Adds missing title entities for Furnaces, Brewing Stands, etc.

I've done some moderate testing and everything seems to be working fine, but can't hurt to do some more.