Delays don't add up at end of transform sequences

[Nebula-Developer]

For example, in this code:

top.After(1f).PaddingTo(new(100), 1f).Then(1f).Loop();

The delay in the Then call is ignored because it doesn't surpass the 1s supplied in the padding transform.

[Nebula-Developer]

This could likely be fixed by simply storing the value of the last delay, then adding that to the EndTime, rather than using the largest value.