Revert "adler32: Drop SSE3 support"•••This reverts commit ba327e76c5b110044ec8ebb75630e79506dfbed8 and re-adds
SSE3 support at the request of Noisytoot.
hash: data after size•••This guarantees ... I guess ABI stability of where the size is,
regardless of the version which may have different maxHashSize.
Not too useful but I guess good practice