HackNet source file release

For those who aren't feeling up to tackling CVS, I've put together a quick tarball of the initial HackNet code committed to our CVS repository last week. The code should compile on any OS with a POSIX-compliant thread library and a curses or ncurses library.

I'm hoping that people will see the direction I'm taking the source code, and be inspired to help contribute, and help speed production along!

HackNet is a multiplayer roguelike game, in the style of Hack and NetHack, coded from scratch in C++.