64 bit fast random word generator.

[hutch--]

The old one written in 32 bit BASIC was ok for 32 bit sized tests but far too slow for making large word lists to test the speed of string sorting algorithms. This is a completely new one written in 64 bit MASM that is much faster than the old one. run it from the command line to get the notation. The source is a joy to behold and is a bit fiddly but its clear enough.