### Description

vtkLogoWidget object provides support for interactively displaying and manipulating a logo. 

Logos are defined by an image and vtkLogoWidget allows you to interactively place and resize the image logo. 

To use this widget, simply create a vtkLogoRepresentation and associate it with the vtkLogoWidget. Turn the widget on before the render. Otherwise, it won't appear until you interact with the scene.
