Allow configuration of Cookies.

Allow the `Lotus#configuration` to inject the `Lotus::Action::Cookies`
module in your application’s controller.

When the application is loading the framework,
`Lotus::Loader.load_frameworks!` will inject the before mentioned
module if the configuration is set.

Closes #1.

Signed-off-by: Josue Abreu josh@pixelpt.com
Documentation should be high level, if we change the loader internals we should change this line too.
What do you think about: `Enable cookies (disabled by default)`?