Closes#4236
CMake now creates a header file in the build directory under the path "include/Globals.h" which just includes "src/Globals.h" with an absolute path. Then instead of adding "src/" to the include directories, it adds "include/".
#include "Globals.h" still works by including the build generated file and any other src-relative path will not work.
Created a new class cEnchantmentSerializer to serilize Enchantments to NBT.
This breaks a dependecy chain between cChunkGenerator and cWorld.
cEnchantmentSerializer is seperate from NBTWriter as it needs to access private members of cEnchantments
so having it seperate reduces the spread of the frein modifier
