Using a ViewModel to render

Example of how a viewmodel could be used to render the template in the monolith.

* Microservice responsible for rendering an article, and passing that blob of HTML to the monolith
* Microservice could choose from various templates.
* Monolith looks after common bits like header, footer etc, and shoves in the blobs of HTML passed by the microservice
* Default viewmodel in monolith
* TODO: confirm viewmodel
* TODO: static assets (i.e. inherit o-ft-header/footer css builds etc)