Scala/Kafka Streams with Postgres Sink

Convert an Scala Kafka Producer/Consumer to use a Kafka Streams Postgres sink. More information about Kafka Streams and Postgres sinks are here: Https://[login to view URL] [login to view URL] [login to view URL] Kafka Streams should be configured to have exactly once semantic. There will be two milestones: 1) Completion of code and unit tests 2) Successful review and local integration on client's environment