title: WPF PRISM - Register view with region without resolving instance
body: <p>Is it possible to register a view by type with a region within the Module initialization without causing the view to be resolved (instantiated) until the view is request for activation.</p>
  
  <p>A scenario for this is when we have view-first approach with a dependency on and external service. I do not want the service to be initialized until the user really requires that view and this will help improve performance because some external services cost time to initialize.</p>
  
  <p>Note: Multiple views are register to the same region (eg. menu navigation style scenario).</p>