AnimationHandleExtensions

A set of AnimationHandle extension methods for additional scheduling and state management

Cancel	Immediately cancels all the animations in the animation chain tied to this handle. No more update steps will run. This is safe to call on invalid handles.
Chain	Runs the provided `animation` after the animation (or animation group) represented by this `handle` has completed
Complete	Moves the animation tied to this handle into its last update step. If the animation is set to loop, this call to Complete will also move the animation into its final iteration, even if the loop is technically infinite. The animation will then run for that final frame.
Include (2 overloads)	Runs the provided `animation` simultaneously with the animation represented by this `handle`. The new `animation` will inherit duration and iterations from the already scheduled animation. Runs the provided `animation` simultaneously with the animation represented by this `handle`
IsComplete	Indicates if an animation has run to completion
Pause	Pauses the animation referenced by this handle in its current state. The animation can be resumed at a future time.
Resume	Resumes a paused animation/animation chain