build/: Add common autotoold module to generate MSVC projects
build/: Add common autotoold module to generate MSVC projects

This adds an autotools module that is copied from GLib, which is
included by the Makefile.am's to generate the complete Visual Studio
projects from their repsective templates, which:

-Cleans up those autotools files
-Make 'make -jN dist' work better

Distrotech/gtk,Distrotech/gtk,Distrotech/gtk,Distrotech/gtk,Distrotech/gtk