Build NON-headless backend for MSVC

[gcasa]

Currently, the graphical backend for this is not built. While at Keysight, I did add this, but it seems only the headless backend is here. The graphical backend and the WinUXTheme should work on MSVC and this should be made available.

NOTE: I believe that because priorities changed when this work was being done, the graphical backend is not here.

[triplef]

I believe this is a duplicate of #36, right? In any case would be great if you could add the graphical backend.

[gcasa]

It is indeed. I will work on that over the weekend.

[gcasa]

Duplicate of #36