Add helper methods to `Table<>` for common db operations (Equals, Not Equals, etc.)

[acupofjose]

Feature request

Javascript and Flutter clients have shorthand methods to support Equals, Not Equals operations. This should be implemented in our client. See: https://supabase.com/docs/reference/javascript/eq

[acupofjose]

Will be addressed and and alternative implementation offered by: #60