title: Transform one record into more than one record using State-store(RocksDB) in Kafka Stream
body: <p>I want to transform one record into more than one record using state-store(RocksDB). I know there is one method such as stream.transform(final TransformerSupplier> transformerSupplier,final String... stateStoreNames) but how to return more than one KeyValue pair so that I can use branch later on to publish to respected topic?</p>
  
  <p>There is one way to forward the data downstream but how can I use that data again?</p>
  
  <p>Kafka Version - 1.1.0</p>