Explore routing implicit animations through CAAction rather than our own internal record keeping

[jverkoey]

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We may find it beneficial to to implement CAAction so that our animations get routed through the expected action architecture. The challenge is that we need to be able to provide the timing struct to the action implementation and that action implementation needs to be able to create an animation object using the animator's configurations. This may require splitting the animator's animation creation logic out to some standalone method.

Some references:

• https://stackoverflow.com/questions/10298905/custom-property-animation-with-actionforkey-how-do-i-get-the-new-value-for-the