Port demo 3 over to use the new TransitionMotion API
Port demo 3 over to use the new TransitionMotion API

dieface/react-motion,bishopZ/react-motion,danieldunderfelt/react-motion,YikaJ/react-motion,YikaJ/react-motion,chenglou/react-motion,beni55/react-motion,xyc/react-motion,threepointone/react-motion,danieldunderfelt/react-motion,threepointone/react-motion,BenoitZugmeyer/preact-motion,chenglou/react-motion,bishopZ/react-motion,keyanzhang/react-motion,mcanthony/react-motion,dieface/react-motion,BenoitZugmeyer/preact-motion,keyanzhang/react-motion,DanielHabib/react-motion,beni55/react-motion,DanielHabib/react-motion,xyc/react-motion,mcanthony/react-motion