created items and configured back office ui a bit

config/routes.rb

@@ -1,12 +1,17 @@
 Rails.application.routes.draw do
+
+  resources :multi_media_descriptions do as_routes end
   resources :sections do as_routes end
+  resources :media_types do as_routes end
+  resources :items do as_routes end
+  resources :units do as_routes end
   resources :sub_categories do as_routes end
   resources :categories do as_routes end
   # The priority is based upon order of creation: first created -> highest priority.
   # See how all your routes lay out with "rake routes".
 
   # You can have the root of your site routed with "root"
-  # root 'welcome#index'
+  root 'items#index'
 
   # Example of regular route:
   #   get 'products/:id' => 'catalog#view'