r23997: Check in the infrastructure for getting rid of the global InBuffer/OutBuffer

r23997: Check in the infrastructure for getting rid of the global InBuffer/OutBuffer

The complete history of this patch can be found under
http://www.samba.org/~vlendec/inbuf-checkin/.

Jeremy, Jerry: If possible I would like to see this in 3.2.0. I'm only
checking into 3_2 at the moment, as it currently will slow down operations for
all non-converted (i.e. all at this moment) operations, as it will copy the
talloc'ed inbuf over the global InBuffer. It will need quite a bit of effort
to convert everything necessary for the normal operations an XP box does.

I have patches for negprot, session setup, tcon_and_X, open_and_X, close. More
to come, but I would appreciate some help here.

Volker