Given a URI, returns the last segment of the URI, removing any path or query information.
    
    
    
    
    
    
        
| Name | Type | Description | 
|---|---|---|
| uri | String | The Uri. | 
Returns:
    The last segment of the Uri.
        
    
    
Example:
//fileName will be"simple.czml";
var fileName = Cesium.getFilenameFromUri('/Gallery/simple.czml?value=true&example=false');