Add SSR Support

[Robbilie]

Is your feature request related to a problem? Please describe.
I am trying to have a page rendered serverside. i have the serialized nodes there and want the page to prerender but it seems to editor/frame is doing it async.

Describe the solution you'd like
Add the abbility to render in a synchronous or blocking way (ie. a helper that outputs react elements based on serialized nodes).

[dbousamra]

@Robbilie This may not be exactly what you want, but perhaps it's helpful #42 (comment)

[Robbilie]

ill look into it, a "native" option would be nice though :)

[tabvn]

I think this feature should implemented for view mode. or we can add new render for view mode and one for editing mode.