Request: Upgrade murmur3 hashing to XXH3 hashing

[glmcdona]

Awesome project! This worked great out of the box and was a speedup of around 10x from the previous package I was using.

See XXH3 hashing here:
https://cyan4973.github.io/xxHash/

It's about 10x the speed of murmur3 according to their benchmarks there. This I think would probably speed up this bloom filter implementation even further.

[yankun1992]

Looks very good, I'll do some benchmarking to see how much of a performance boost there is!

[glmcdona]

Just a note, that I think by that benchmark it'd be more likely ~2.4x faster hashing, not 10x that I mentioned above. Since this would be small value hashing.

[yankun1992]

Upgrade to version 0.5.0