v1.7.0 - Delay feature

What's Changed

Breaking change: The initialDelay parameter has been added to the NewTween() method.

tween.NewTween(
	1,
	10,
	time.Second*3,
	time.Second, // inital delay
	tween.InCubic,
	false,

• Delay feature by @setanarut in #3

Full Changelog: v1.6.0...v1.7.0