Should we care about differences in handling transparent wrappings and @transparent annotation?

@ddworak yes, that irks me too and I was thinking whether I should unify how MongoAdtFormat represents case classes with @transparent and types with TransparentWrapping.

In the end I decided not to do it because:

• @transparent is somewhat deprecated, you should favor TransparentWrapping where possible
• @transparent requires that the type is a case class (-ish) so in the end it is accurate to represent its format with MongoAdtFormat.RecordFormat

Yes, it's kind of arbitrary and not very pretty but it will only cause problems if someone decided to manually inspect MongoAdtFormat instances.