Add support for Java records and Optional serialization in the JSON plugin.

[srilakshmikanthanp]

Summary

• Java records are now serialized using RecordComponent metadata, as Introspector.getBeanInfo() does not expose record components through the traditional JavaBeans property model.
• java.util.Optional now serializes as its contained value or null when empty. Optional.empty() is treated as null when excludeNullProperties is enabled, including for bean/record properties and map values.
• @JSON and @JSONFieldBridge annotations can now be applied directly to record components.

I implemented these changes based on my understanding of the existing codebase and tried to keep the implementation minimal and consistent with the current design.

I'd appreciate a review of the implementation and approach. If you'd like any changes, please let me know and I'll update the PR.

[lukaszlenart]

Please create a JIRA ticket first https://issues.apache.org/jira/projects/WW/

[srilakshmikanthanp]

Thanks! I've requested an Apache JIRA account. Once it's approved, I'll create the JIRA issue and update this PR with the issue number.