Support Confluent's Data Contracts features

[EricWittmann]

https://docs.confluent.io/platform/7.6/schema-registry/fundamentals/data-contracts.html#

Confluent Schema Registry adds support for tags, metadata, and rules, which together support the
concept of a Data Contract. As a part of a Stream Governance solution, data contracts play a key role
in ensuring data quality, data consistency, interoperability, and compatibility when sharing
information across different systems or organizations.

[fmiguelez]

Could it be possible to add this feature as some kind of mock for first version? I mean just storing the extra data (e.g. "metadata") as it comes without any additional logic.

[EricWittmann]

Yes I do think that's the first iteration of this.

[fmiguelez]

@EricWittmann any update on this? This issue is preventing us from using Apicurio instead of Confluent Schema Registry.