Parses a query string into an object, where the keys and values of the object are the
name/value pairs from the query string, decoded. If a name appears multiple times,
the value in the object will be an array of values.
    
    
    
    
    
    
        
| Name | Type | Description | 
|---|---|---|
| queryString | String | The query string. | 
Returns:
    An object containing the parameters parsed from the query string.
        
    
    
Example:
var obj = Cesium.queryToObject('key1=some%20value&key2=a%2Fb&key3=x&key3=y');
// obj will be:
// {
//   key1 : 'some value',
//   key2 : 'a/b',
//   key3 : ['x', 'y']
// }