Item names changed (nothing should be affected, internal names are untouched)

Crafting recipes changed

Items now stack to 16

Crafting End Sludge (formerly End Matter) now gives two

Added alternate crafting recipe for Eye of Ender

Changed how giving saturation works for Dragon Soul (formerly Breath of Life)

Advancement for crafting Eye of Ender

Dragon Soul now gives ambient effects when held

Dragon Soul is now a bit more balanced

Cleaned up some code

Updated readme/description