Add the ability to exclude tables in config

[vjeeva]

Problem:

1. We have a tables key in the config to ensure only certain tables get replicated.
2. DBs that use AWS DMS have some DMS tables with different ownership and people need to avoid replicating those tables to avoid permission issues (also those DMS tables are for minor features and can be truncated any time).
3. To exclude tables right now, you need to list out every single table except the singular DMS table. People have 100+ tables and this is proving to be painful.

The above problem can affect anyone that needs to exclude a small set of tables, but instead have to list out every single table otherwise (that list can be much larger than the exclusion)

Definition of Done:

1. Add a way to exclude tables to help with the above problem.