This adds a common autotools module that can be used by various
projects to generate the Visual Studio projects as needed, and
if necessary, generate the headers listings to "install" for that
project, based on items passed in to this. This is modelled on the
Makefile.introspection autotools file that is used by many GNOME
projects to generate the introspection files.
https://bugzilla.gnome.org/show_bug.cgi?id=735429
