[CMake] GUIDs in VS solution files

[Vincent Scheib]

Oh, sorry, this isn't a complete solution yet. It does allow these
projects to be loaded into the solution, however they will not build
or run. There is a configuration & Platform mismatch. If you look at
the configuration management window, you'll see that C# projects have
incorrectly been set to configurations they don't support.
Specifically Platform as "Win32", where they only support "Any CPU".