[Request] Add DOJumpZ

[xjjon]

For 2-D games in a 3D world it would be nice to have a DOJumpZ:

public static Sequence DOJumpZ(
            this Transform target,
            Vector3 endValue,
            float jumpPower,
            int numJumps,
            float duration,
            bool snapping = false)
        {
            if (numJumps < 1)
                numJumps = 1;
            float startPosZ = 0.0f;
            float offsetZ = 1f;
            bool offsetYSet = false;
            Sequence s = DOTween.Sequence();
            Tween zTween = DOTween.To(() => target.position, x => target.position = x, new Vector3(0.0f, 0, jumpPower), duration / (numJumps * 2))
                .SetOptions(AxisConstraint.Z, snapping)
                .SetEase(Ease.OutQuad)
                .SetRelative()
                .SetLoops(numJumps * 2, LoopType.Yoyo)
                .OnStart(() => startPosZ = target.position.z);
            s.Append(DOTween.To(() => target.position, x => target.position = x, new Vector3(endValue.x, 0.0f, 0.0f), duration)
                .SetOptions(AxisConstraint.X, snapping)
                .SetEase(Ease.Linear))
                .Join(DOTween.To(() => target.position, x => target.position = x, new Vector3(0.0f, endValue.y, 0.0f), duration)
                    .SetOptions(AxisConstraint.Y, snapping)
                    .SetEase(Ease.Linear)).Join(zTween)
                .SetTarget(target)
                .SetEase(DOTween.defaultEaseType);
            zTween.OnUpdate(() =>
            {
                if (!offsetYSet)
                {
                    offsetYSet = true;
                    offsetZ = s.isRelative ? endValue.z : endValue.z - startPosZ;
                }
                Vector3 position = target.position;
                position.z += DOVirtual.EasedValue(0.0f, offsetZ, zTween.ElapsedPercentage(true), Ease.OutQuad);
                target.position = position;
            });
            return s;
        }