title: UIApplication.shared.delegate equivalent for SceneDelegate xcode11?
body: <p>I have defined a let property within my SceneDelegate. I would like some of the ViewControllers to be able to access that within the scene.</p>
  
  <p>In UIKit I could access App Delegate properties like this:</p>
  
  <pre><code>UIApplication.shared.delegate
  </code></pre>
  
  <p>then casting and specifying the property name...</p>
  
  <p>Is there an equivalent to get the a reference to the SceneDelegate the view controller is in from the UIViewController's instance?</p>