1.7.10 packet rework

[Kenkron]

This is the packet rework stuff I've done so far. Mostly, I've added the class "TileGroup", and remade the NBT storage to be heirarchical (you can see this in src/test/java/hunternif/mc/atlas/TestNBT.java). As far as I could, I kept the classes interfaced with the same way (getTile, setTile, etc.).

Tile group holds a 16x16 square of chunk data, and is now used in dimension data where individual tiles were used before.

The heirarchy looks something like:

• AtlasData
  • Dimension Data
    • TileGroup

I hope this will do 3 things:

1. Make the data more compact (the least important IMO)
   • Now, 256 tiles require 256 integers for tile data, 2 integers for posistion data, and 2 tag names (1 char each) (total: 258*4 + 4 = 1036 bytes)
   • Previously, it requred 256 tag names (which stored position data, ~6 bytes each), and 256 integers (total 2560 bytes)
2. Give the network a way of sending data incrementally, without sending a packet for everyt tile

• tile group data could be slightly less than 10x the size of an empty TCP message.

3. Prevent future problems with the NBT tag limit

• It looks like there's a limit to an NBT tag's size, and I'm hoping that breaking it up will prevent that from happening.

[Hunternif]

Thanks!