### Motivation This is a caught-up change to enable properties for producer as java clients.
### Changes Enable properties on producer for both cpp & python client ### Results Properties are added as metadata for CommandProducer. However there is no way to verify the producer properties. so I didn't add any specific tests, just adding properties for both cpp and python clients in the tests, that should excerise the corresponding code path. [ Full content available at: https://github.com/apache/incubator-pulsar/pull/2420 ] This message was relayed via gitbox.apache.org for [email protected]
