Add method to ease migration from JColorChooser.

"ColorSwatchComponent.colorChooserDialog(...)" is a static method that
is used essentially the same way that JColorChooser.showDialog(...) is
used.

[1765]
Use ColorSwatchComponent rather than JColorChooser

This puts a persisted color swatch in the display controls "View>Display
List>Display List Color>Custom Color".

[1765]