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* Overhaul endian handling in ByteBuffer and FastNBT Rather than juggling "swapped" and "unswapped" versions of integers, different library functions, #defines, etc., simply always read everything byte-by-byte. This works regardless of host CPU endian, got optimised down to either a normal load or a byteswap on every compiler I tested - only 1 instruction on most CPU architectures. This commit introduces a "Bytes" array type to keep endian-sensitive data seperate from host data, alongside the needed C++ template machinery for it to work seamlessly. This approach is a little bit safer as well since you get length- and type-checking for most callsites. * Remove remaining references to old-style endianness conversion, remove functions themselves. --------- Co-authored-by: Alexander Harkness <me@bearbin.net>