Feature: support spring animations

[jlarmstrongiv]

Spring animations feel more natural than easing animations, and it would be great for react-scroll-parallax to support customizing them out of the box.

Configuration examples include:

• https://react-spring.dev/common/configs
• https://www.framer.com/docs/transition/#spring
• https://developer.apple.com/documentation/uikit/uispringtimingparameters?changes=_3_5_5

In the meantime, it may be possible to implement with react spring and onProgressChange