A MVVM approach

[programadorthi]

Well, it is not a complain about actual structure. But I think that would be nice having more approaches to use KMM in this sample. So, instead of open a pull request to put code that will never to production, I'm opening here an issue to curious about how this sample would works using MVVM. Feedbacks are welcome. https://github.com/Kotlin/kmm-production-sample/compare/master...programadorthi:kmm-production-sample:mvi-to-mvvm?expand=1

[pahill]

Thank you, will take a look!