ossp uuid win32 port

A win32 port of OSSP's uuid library & its command line tool (aka uuid / uuid_cli).

=== Acknowledgment:
OSSP uuid homepage:
http://www.ossp.org/pkg/lib/uuid/

=== Current status:
* Branch from OSSP uuid library v1.6.2
* A workable/buildable msvc10 solution files which tweaks:
* Tweaked config.h (config_win32.h) and uuid.h (uuid_win32.h) which suit for MSVC 32/64 bits
compilers
* uuid_mac.cpp: Use windows platform sdk to get the mac addr of 1st NIC
* uuid_cli.cpp: A simple drop-in replacement of getopt() for uuid_cli to work.
* uuid_prng.cpp: Quick fixes enable to be built in MSVC.

=== Todo:
* cover mingw & cygwin.
* no dce support.
* not yet process uuid++.cc/hh
* no perl/pqsql/php binding yet.