first cut of NSStream

[Derek Zhou]

Hi all,
I haven't had much time to work on this; this is what I got for now. I
post in the spirit of post early; they only have very limited testing on
linux and don't compile on mingw at all. Also they lack functionalities
such as SSL and SOCKS. Anyway, here you go. They should work with any
reasonably recent gnustep-base. I do plan to add the missing
functionalities, some tests and mingw support if I can get mingw
working.
Derek

NSStream.h
Description: NSStream.h

NSStream.m
Description: NSStream.m