Procedurally generate a unique snowflake from a hash.

There will eventually be a post on joshleeb.com explaining how the Snowhash algorithm works. In the mean time there is a demo up at joshleeb.com/snowhash.html.

To build just the snowhash library:

$ git clone https://github.com/joshleeb/snowhash.git && cd snowhash
$ cargo build

This project is based on Snowflake by Raph Levein which is "an implementation of procedural generation of snowflakes."