[Table] Add animated option to scrollToRegion instance method

[cmslewis]

Would be nice to add an animated: boolean = false parameter to Table.scrollToRegion(region: IRegion). If true, the table would animate the scroll with inertia.

This is crucial for helping the user maintain context within the table if the surrounding app doesn't style the newly scrolled region with a styledRegionGroup (e.g.).

Potential challenge: having batch rendering keep up when scrolling long distances. Very possible we'd get a blank screen for the bulk of the scroll.