Reset zoom using animation

[Zenfeuer]

Actually, I would like to reset the image with a smooth animation, but the current reset() method does not make it smoothly. Maybe, exposing a public function (let's called resetAnimated()) that can achieve that. Something like this can work (I already test it):

public resetAnimated(duration) {
    this.scale = 1;
    this.positionX = 0;
    this.positionY = 0;

    Animated.parallel([
      Animated.timing(this.animatedScale, {
        toValue: this.scale,
        duration
      }),
      Animated.timing(this.animatedPositionX, {
        toValue: this.positionX,
        duration
      }),
      Animated.timing(this.animatedPositionY, {
        toValue: this.positionY,
        duration
      })
    ]).start(() => {
      this.imageDidMove('centerOn');
    });
}

For my case, I need something like this because I would like to achieve a similar behavior like zoom on Instagram pictures.

I can create a PR with this change but I would like to know your thoughts about this.

Thanks!