Update operator for Kafka Connect

[MikeEdgar]

To allow users to configure Kafka Connect in the Console CR, the CRD model, mapping process, and roles need to be updated in the operator module.

• Using com.github.streamshub.console.config.KafkaConnectConfig (in common module) as the basis, add a KafkaConnect class to the operator's com.github.streamshub.console.api.v1alpha1.spec package and make a list of them configurable from the ConsoleSpec.
• Update the operator's ConfigurationProcessor to map the model added above to the configuration model (in common). This will likely be similar to what is done in the addSchemaRegistries method.
• Update RBAC
  • Update the role granted to the console in /src/main/resources/com/github/streamshub/console/dependents/console.clusterrole.yaml to allow kafkaconnects and kafkamirrormaker2s to for get/list/watch, similar to what was done in /install/operatorless/020-ClusterRole-console-server.yaml.
  • Update the operator's role in operator/src/main/kubernetes/kubernetes.yml in a similar way. The ClusterRole to change is streamshub-consolereconciler-additional-cluster-role. This allows the operator to delegate this access to the console deployments.