AA dsource project

[dsimcha]

== Quote from bearophile (bearophileHUGS at lycos.com)'s article
> dsimcha:
> > Also, if you have a good benchmark for AAs, please create a benchmarks/
> > directory and submit it.
> You may try this too (C code, the "khash.h" file, plus few demos), the original
code is not mine, with MIT License:
> http://www.fantascienza.net/leonardo/js/khash.zip
> I have found it to be quick for some of my usages.
> Bye,
> bearophile

For the purposes of this project, I only accept D code.  If you want to submit it,
port it to D.  Also, if you want to submit it, please submit it so we can browse
the source code online instead of linking to a zip file that we then have to
unzip, etc.