Extended Peripherals

Adds more functionality to computercraft peripherals.

The functions added to peripherals are as follows:

• getBlockName: gets the name of the block that the peripheral is attached to.
• getBlockData: gets block nbt data that both minecraft and other mods add.
• getBlockStates: gets block states that can be used to determine states that affect a block's visuals, like direction or whether a furnace is on.