Allow delta transform rotation to rotate the animation as well

Delta transform is really handy for transforming animated objects, but the rotation feature doesn't work in an expected way currently.

When you transform the object, the keyframes will transform with the object to that new location, which is expected behavior, but if you rotate the object, the keyframes do not rotate with it, which is not so useful or expected.

In current behavior, if you delta rotate your object, the animation keeps going to that old direction, so rotating it at all is kind of useless there, because it breaks the animation.

Basically to do the delta transform in a way that feels an expected way, you have to parent it to an empty, which allows you to rotate the parented and animated object in a way that feels what the delta transform should be doing.

If this current behavior for some reason is needed, then we need a toggle check box in delta transfor to be able to use this proposed feature and by default you would get the old way.

When we are at it, maybe delta time also in the same location?

See this gif to understand this problem better: i.imgur.com/4G9G7kh.gif