ComboBox dropdown doesn't take FontSize of parent in consideration

[Ven0maus]

When the parent screenobject has a different fontsize than the _dropDownContainer, the position is wrong. Fix would be something like this:

_dropDownContainer.FontSize = ((ScreenSurface)_dropDownContainer.Parent).FontSize;

[Thraka]

Fixed in https://github.com/Thraka/SadConsole/commit/449ddc7430dc490c95e976c13321b2e36cc7d031