Added colors from Clickteam Fusion color picker window.

That color picker has white and black plus 15 shades of gray at the
bottom, and a hexagonal color grid at the center. The dialog looks quite
similar to color picker dialogs from other Windows programs.
Adding labels to Clickteam Fusion.gpl
Renamed `Clickteam Fusion.gpl` to `Windows MFC.gpl`.

Also added labels to all colors.
Using arrows in labels.