Will this Tween persist after playback? A Tween that persists will not be destroyed by the
Tween Manager, or when calling Tween.stop, and can be re-played as required. You can either
set this property when creating the tween in the tween config, or set it prior to playback.
However, it's up to you to ensure you destroy persistent tweens when you are finished with them, or they will retain references you may no longer require and waste memory.
By default, Tweens are set to not persist, so they are automatically cleaned-up by
the Tween Manager. But TweenChains do persist by default, unless overridden in their
config. This is because the type of situations you use a chain for is far more likely to
need to be replayed again in the future, rather than disposed of.