Module for procedural generation with hashes

[PhilHibbs]

I am working on a Python library to replace use of the random number generator with a hash-based system, so that seeded sequences are no longer fragile when new calls to the RNG are inserted.

https://github.com/UKHomeOffice/python-pghash

It has basic features complete and no known bugs, I'm calling it version 0.0.1 for now in case I need to make any changes that break seed-compatibility. I am hoping that I will never need to do that.