Enable authorizations w/ dummy-auth (#158)

* Enable authorizations w/ dummy-auth

* fixed: some tests run in privileged mode

* Fixed tests to skip auth

* npm test --silent

* Added dependency to passport

bookshop/srv/cat-service.cds

@@ -5,6 +5,6 @@ service CatalogService @(path:'/browse') {
     author.name as author
   } excluding { createdBy, modifiedBy };
 
-  @requires_: 'authenticated-user'
+  @requires: 'authenticated-user'
   action submitOrder (book : Books:ID, amount: Integer);
 }