Evaluate the possiblity to drop DataAdaptor

[gabesullice]

I don't understand the remaining distinction between a transformation, reversible transformation and data adapter.

It seems like the DataAdaptor name could go away and just be a ReversibleTransformationBase that extends from TransformationBase

[e0ipso]

That's not correct. The validation is different at this point since we need to enforce common validation in the internal shape.

[gabesullice]

I'm not saying the behavior needs to be dropped, I'm just saying to move the ReversibleTransformation

[gabesullice]

Ugh, I'm sorry for all the noise. I'm clicking buttons on accident.

[e0ipso]

@gabesullice I'm not 💯 sure I'm following your suggestion. Can you clarify a bit? Maybe a quick PR would be the simplest.

[e0ipso]

I am gardening the issue queue a bit. If you still want this, let me know.