add a Schema registry support

[oalam]

SchemaRegistry provides a central repository for a message’s metadata. A schema specifies the message structure and type. Schema Registry will allow us to store these schemas efficiently and provides a pluggable serializer/deserializer interfaces and run-time provision of serializer/deserializer implementations based on incoming messages. Schema registry will also enable reuse/discovery/authoring/collaboration related to schemas.

https://registry-project.readthedocs.io/en/latest/
https://github.com/hortonworks/registry