Investigate creating a CDC abstraction for re-use across CDC sources

[sherifnada]

Postgres and MySQL both use Debezium to power CDC. They both have lots of similarities in their implementation. Seeing as we currently support 2 out of 8 debezium-support sources, we can gain leverage from abstracting the commonalities.

This ticket should:

1. Investigate whether there is a good abstraction for Debezium based CDC that can be done
2. Implement the abstraction if it is a valuable one (creating sub-issues as necessary)