Add an FNV-1a example (non-cryptographic hash).
Add an FNV-1a example (non-cryptographic hash).

TomMD/cryptol,GaloisInc/cryptol,TomMD/cryptol,ntc2/cryptol,TomMD/cryptol,GaloisInc/cryptol,TomMD/cryptol,GaloisInc/cryptol