pick up interpolated values and integrate with Animated

[misbell]

Describe the Feature

Currently as you drag, you pick up a value from the slider, and the range between the last value you pick up and the next one is related to how fast you scroll.

I'd like to be able to pick up interpolated values in the rage on an evenlyspaced timed event loop so that I could get smooth animations on related svg graphics - e.g. changing the value on an svg graphics arc as I am moving the slider thumb.