Class Room demo in Eevee

Quick conversion of the classical demo to test the latest improvements of Eevee (0bf615f). Full render (not OpenGL capture any more) and render passes are great!

I rendered the scene at 4k and scaled the frames down to full hd for better AA in highlights. Render time was 20s per frame or so.

Overall quality is excellent, but we can see some shadow / AO issues, due to the very nature of screen space post effects.