Issue Description: The data plane has to deploy some resources when a SinkConnector CRD is added. 

Acceptance Criteria: A new controller for the SinkConnector CRD is added. Together with the SinkConnector CRD, a Secret with all the kafka connection details should be created. 

The reconcile loop of that controller should take the kafka connection details from the secret and deploy a KafkaSink resource properly configured. 

Out of Scope: <Here you need to fill in what is out of scope for this issue and then create new issues if necessary in the backlog for the work>

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