Create Kafka Use case guides and Troubleshoot guide

[gayaldassanayake]

Stock trading analyzer

This use case will cover:

• Core producer-consumer functionality
• SASL authentication with Kafka broker
• Encrypted (SSL enabled) communication setup
• Banking transaction processor

Banking transaction processor

This use case will cover:

• Core producer-consumer functionality
• mTLS based authentication setup with Kafka broker
• Confluent Schema registry integration with Avro serialization
• Troubleshooting guide

Troubleshoot guide

A comprehensive troubleshooting guide for Kafka-based event integrations in WSO2 Integrator: BI should be introduced to help developers efficiently diagnose and resolve issues encountered while working with the connector, ensuring a smoother development experience.

This guide will focus on troubleshooting key problem areas such as:

Connectivity issues (broker availability, SSL/TLS configurations, authentication configurations etc)
Serialization and deserialization issues
Schema registry integration-related issues (Confluent schema registry)