Auth Framework, Part 2

Auth class is back up and running to handle user authorizaion
as well as session managment.
Implemented basic usage on admin index class just for an example.

Added a couple of new template files and css to start defining the
overall style of pages and UI.

src/Controller/Routes/Back/Members.php

@@ -41,7 +41,7 @@ class Members extends AbstractController
     }
 
     /**
-     * @Route("/screendoor/members/add", name="members-add")
+     * @Route("/den/members/add", name="members-add")
      */
     public function addMembers(
         Request $request,