* Support for EventHub for Kafka as input
* Eventhub for kakfa input changes
* Support for native kafka
* Support for native kafka
* kafka producer
* Updated pom file and few minor updates to comments.
* Add license header to new files.
* pom file updates to revert spark version.
* Adding more headers
* Add comments to new files.
* Revert Sprk 2.4 signature change for UDF.
* ignore codesign
* Define constants and convert return null to throwing exception.
Vijay Upadya
Rohit Agrawal