More VS Templates Fixes

Even more template fixes:
 - Fixed incorrect hardcoded GUIDs in the templates.
 - Fixed bad substitution vars in AssemblyInfo files.
 - Fixed the unnecessary differences in the AssemblyInfo files.
 - Renamed template folder Windows to WindowsGL.
 - Renamed template folder Game to WindowsStore.
 - Renamed template folder XamlGame to WindowsStoreXaml.