This really didn't need a backport vote per say, is already built

for other platforms, and for Windows in trunk.

mod_proxy_scgi: Add module to build on Windows.

Submitted by: rjung
Reviewed by: wrowe



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@1004734 13f79535-47bb-0310-9956-ffa450edef68