private NSPR headers (prosdep.h and primpl.h) from the Mozilla source.
The part of prosdep.h that is actually needed by Mozilla was extracted
and put in the new file mozilla/include/xp_path.h.
This is a (mostly) unmodified version of lib/libnet
broken up into functional areas
It should be binary compatible with the lib created by lib/libnet
but is now 10 libs.
The only substantial things changed in the version is the include files
