Log Message:
-----------
Add missing library and include support for pg_upgrade to MSVC build system.
Modified Files:
--------------
pgsql/src/tools/msvc:
Mkvcbuild.pm (r1.54 -> r1.55)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/tools/msvc/Mkvcbuild.pm?r1=1.54&r2=1.55)