Add createAdapter to other components?

[skleeschulte]

I see that the ripple component has a createAdapter method which returns the default adapter implementation. In the React framework example, it is used as a 'base' adapter, and only some of the adapter methods are changed for the React integration. I think it would be helpful to have some way to get the default adapter of every component. In my case for example, if it was possible to get the default toolbar adapter, I would not have to re-implement the adapter methods registerScrollHandler, deregisterScrollHandler, registerResizeHandler, deregisterResizeHandler, getViewportWidth and getViewportScrollY.