Release: Refactor Hashes

[mikedh]

• release Change uses of hashlib.md5 to an FIPS compliant hash function #1685
• fix Fix FIPS error thrown on useage of MD5 hash function #1684
• deprecate every method of hashing arrays and geometry other than item.__hash__() or derived hash(item) with an October 2023 warning.
  • x.md5(), x.crc(), x.hash() are all replaced by x.__hash__ or hash(x)
  • x.__hash__ returns a long int, where hash(x) hashes the long int into a 64 bit integer. Practically I don't think this will make a difference but internal uses concatenating multiple hashes are doing it with the results of __hash__.
• caching just tracks one hash_fast rather than fast, md5, and crc
• hash_fast is the fastest available in this order: xxh3_64, xxh_64, blake2b, sha256.
• you really want to install xxhash, it's like 50x faster
• rename identifier_md5 to identifier_hash which switches from MD5 to SHA256