This method is called when a mouse button has been clicked (pressed and released).
See the {@code sample.Interactive} robot for an example of how to usemouse events.
@param event holds details about current event
@see java.awt.event.MouseListener#mouseClicked(MouseEvent)
@see #onMouseMoved(MouseEvent)
@see #onMousePressed(MouseEvent)
@see #onMouseReleased(MouseEvent)
@see #onMouseEntered(MouseEvent)
@see #onMouseExited(MouseEvent)
@see #onMouseDragged(MouseEvent)
@see #onMouseWheelMoved(MouseWheelEvent)
@since 1.3.4