build: Added Visual Studio project file generator

Added a batch file for generating the Visual Studio project files from
the new template files.
build: Added VC9 and VC10 support to the project file generator
build: Added VC11 support to the project file generator
build: Added VC6 and VC12 support to the project file generator
build: Added VC7 and VC7.1 support to the project file generator

Note: VC7.1 templates are currently not available.