Minor Description
Currently Kafka streams Sink Nodes use default partitioner or has the provision of using a custom partitioner which has to be dependent on key/value. I am looking for an enhancement of Sink Node to ensure source partition is preserved instead of deriving the partition again using key/value. One of our use case has producers which have custom partitioners that we dont have access to as it is a third-party application. By simply preserving the partition through context.partition() would be helpful.