react-move-scatter: Re David's comments on props: added jsdoc for `AnimateProp`, Added @type for `AnimateableValue`
react-move-scatter: Re David's comments on props: added jsdoc for `AnimateProp`, Added @type for `AnimateableValue`

ihmeuw/beaut,ihmeuw/ihme-ui,ihmeuw/ihme-ui,ihmeuw/beaut,ihmeuw/ihme-ui,ihmeuw/beaut