Update Statocles configs for new Beam::Wire bare services

[preaction]

With the new Beam::Wire v1.018, we have bare services. These services do not need a class or args in the root of their configuration hash. So, whereas now we have:

site:
    class: Statocles::Site
    args:
        apps:
            # ...

Using bare services we can make it look like:

site:
    apps:
        # ...

We will need to make a default class of Statocles::Site, of course. If users want to override that, they can do:

site:
    $class: My::Site

To add roles:

site:
    $with: My::Role

And etc...

This will clean up the configuration quite a bit, and make it look more like configuration and less like code.

[preaction]

This is being handled by #445