Allow rendering of RootEngine results onto Node outputs

[tjbaron]

[tjbaron]

@chrisjpatty I've been experimenting with implementing my suggestion #78.

Please let me know if you have any suggestions. And (if this is something you're interested in), what changes/additions would be necessary to get this merged.

[chrisjpatty]

Oh nice, I'll definitely spin through this and check it out! Thanks for putting this together

[antomarsi]

That could be a nice update, @chrisjpatty any update on the review?