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
I also added a warning(push)/(pop) around crpytlib.cpp because it would go crazy with warnings.
So now, the only warning from cryptopp that is not blocked is 'unreferenced local function has been removed', which also occurs at a single function.
