suggest a MooX::Options example

I wonder what you suggest as best practice to make an App with Moops. When I saw MooX::Options today, I thought I try it. This is the result. Perhaps you have a better solution.

Also, I don't quite understand why I need that "use Moo", but without it there is an error message.

And I like stack trace produced by Carp 'verbose' so I thought I put that in.

best
mokko