A widget for displaying information or a description.
    
| Name | Type | Description | 
|---|---|---|
container | 
            
            Element | String | The DOM element or ID that will contain the widget. | 
Throws:
- 
    DeveloperError : Element with id "container" does not exist in the document.
 
Members
    Gets the parent container.
    Gets the iframe used to display the description.
viewModel : InfoBoxViewModel
    Gets the view model.
Methods
    Destroys the widget.  Should be called if permanently
removing the widget from layout.
Returns:
    true if the object has been destroyed, false otherwise.
    
