old library: just some tweaks for transition to newlib

old library: just some tweaks for transition to newlib

A few minor changes are being made to position the old
readproc logic for a transition to the newlib pid api.

These changes will not impact current users beyond the
the need to recompile such code. Hopefully this should
be very last version change to the deprecated library.

. most char arrays were replaced via char * to dynamic
memory. this was done so that newlib could just assume
ownership of such strings without using a strdup call.

. former user and group name arrays also became char *
but here the reason was because pwcache already cached
those names. so, copying to an array never made sense.

. the concept of QUICK_THREADS used to avoid duplicate
overhead for string data was disabled. it could not be
integrated with the newlib design, at least initially.

. any #define which influenced the size of that proc_t
was disable in the header. it was probably a poor idea
to approach optional features in such a manner anyway.

Signed-off-by: Jim Warner <james.warner@comcast.net>