13.7 (The Colorable interface) Design an interface named Colorable with a void method named howToColorO. Every class of a colorable object must imple- ment the Colorable interface. Design a class named Square that extends Geometricobjects Colorable howToColor display the message Color all four sides Draw a UML diagram that involves Colorable, Square, and Geometricobject. Write a test program that creates an array of five Geometricobjects. For each object in the array, display its area and invoke its howToColor method if it is colorable