Full(ish) screen life, in imcc

[Dan Sugalski]

In an attempt to get a handle on IMCC syntax, I thumped up the traditional
life program a bit. To make it more interesting, I also converted it over
to use curses (well, OK, ncurses) to do the displaying.

The life program, which isn't that interesting as these things go, is in
examples/assembly/ncurses_life.imc. The ncurses interface, which is a bit
more interesting, is in library/ncurses.pasm. (And yes, the library
directory is new)

Feel free to thump. I've not given this much of a workout to make sure it
all works, just the bits that are used in the life program. OTOH, it's
distinctly possible that there are signatures that are used but not
defined in the call_list.txt file, as I'm running this on an x86 system
that autobuilds the call headers. (So patches there, and elsewhere come to
think of it, are welcome)

Dan