Scanner interface on API structs

[viktorminko]

Hi,

I've been using your API and storing data in MySQL DB (cities, airports etc.)
However you don't have any rules how to store/recover your structs in DB.
I think the best way to do it is to implement Valuer and Scanner interfaces on your API structs,
but I can't do it in my package.
Can you advise me a best way to to do that in my package ?
Do you think this functionality should be in your API ? If so, maybe I can make a pull request ?