Mark residential addresses as residential

I think I probably should add a configuration option to the shipping method that allows switching this on and off because this does add a small delay to uncached address queries. Maybe an option to mark all packages as residential too, skipping the API check.

Seems like we have two different patches going for this. Here and ✨ Address validation Needs review ?

Closing in favor of earlier ✨ Address validation Needs review .

The goal of this was to get the feature added instead of a whole address validation system implemented. The current state of the other issue is far from complete and it's not even clear how address validation should be implemented.

If the goal of the other issue is to implement residential address checking then it should be updated to reflect that.