GUI Suggestions

[voltuz]

Awesome software man, love it!

I just though of some small gui improvements:
-show percentage, how long it's been rendering and some estimation of when it's gonna be done rendering for both image and animation rendering.
-having some render stats for every node connected, for example how long did the last rendered frame took to render and the average render time per frame. and also maybe how many frames each node rendered (for animation obviously)