[ADAP-677] [Feature] Add a BaseClass to the ConnectionWrapper

[Fokko]

Is this your first time submitting a feature request?

• I have read the expectations for open source contributors
• I have searched the existing issues, and I could not find an existing issue for this feature
• I am requesting a straightforward extension of existing dbt-spark functionality, rather than a Big Idea better suited to a discussion

Describe the feature

Before adding #814 I think it would be nice to add a base class above the wrapper to make sure that we don't break any methods.

Describe alternatives you've considered

No response

Who will this benefit?

No response

Are you interested in contributing this feature?

No response

Anything else?

No response