Make resend_code route configurable

lib/two_factor_authentication/routes.rb

@@ -4,8 +4,16 @@ module ActionDispatch::Routing
 
       def devise_two_factor_authentication(mapping, controllers)
         resource :two_factor_authentication, :only => [:show, :update, :resend_code], :path => mapping.path_names[:two_factor_authentication], :controller => controllers[:two_factor_authentication] do
-          collection { get "resend_code" }
+          collection { get resend_code_path(mapping), as: "resend_code" }
         end
       end
+
+      def resend_code_path(mapping)
+        Devise.mappings[resource_name(mapping)].path_names[:two_factor_authentication_resend_code] || "resend_code"
+      end
+
+      def resource_name(mapping)
+        mapping.class_name.underscore.to_sym
+      end
   end
 end