title: How to get the progress of the current animation sequence in TimelineMax
body: <p>I am using timelinemax to perform a series of tweens as follows:</p>
  
  <pre><code>this.backgroundColorTimeline = new TimelineMax({
      repeat: -1,
      yoyo: true,
      onUpdate:this.updateTimeline,
  });
  
  palette.bg.forEach((paletteColor) =&gt; {
      this.backgroundColorTimeline.add(TweenMax.to(this.bg, settings.colorAnimTime, {
          easel: { tint: paletteColor },
      }));
  });
  </code></pre>
  
  <p>While each TweenMax instance is running, I want to be able to get its progress. So if my timeline has 10 tweenmax animations, I want to get each animation's progress (as a scale from 0 to 1) on update.</p>
  
  <p>I see that timelinemax has a <code>progress</code> event, but that wouldn't divide the time up by each animation. </p>
  
  <p>How do I get just the current animation's progress?</p>