Description:
    Stubs out a scaffolded controller, its seven RESTful actions and related
    views. Pass the service name, either CamelCased or under_scored. The
    controller name is retrieved as a pluralized version of the service name.

    This generates a controller class in app/controllers and invokes helper,
    template engine and test framework generators.

Example:
    `rails generate admin:scaffold_controller Payment`

        Controller: app/controllers/payments_controller.rb
        Test:       test/controllers/payments_controller_test.rb
        Views:      app/views/payments/index.html.erb [...]
        Helper:     app/helpers/payments_helper.rb
