pgsql: Support for building contrib/uuid-ossp with MSVC.

Log Message:
-----------
Support for building contrib/uuid-ossp with MSVC.

Original patch from Hiroshi Saito, modified by me.

Modified Files:
--------------
    pgsql/doc/src/sgml:
        install-win32.sgml (r1.45 -> r1.46)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/install-win32.sgml?r1=1.45&r2=1.46)
    pgsql/src/tools/msvc:
        Install.pm (r1.28 -> r1.29)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/tools/msvc/Install.pm?r1=1.28&r2=1.29)
        Mkvcbuild.pm (r1.25 -> r1.26)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/tools/msvc/Mkvcbuild.pm?r1=1.25&r2=1.26)
        Solution.pm (r1.35 -> r1.36)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/tools/msvc/Solution.pm?r1=1.35&r2=1.36)
        config.pl (r1.8 -> r1.9)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/tools/msvc/config.pl?r1=1.8&r2=1.9)