Add Kryptonite Single Message Transform to perform field level encryption

Data in Apache Kafka is always at risk to be "seen" by a person accessing the Broker. In such cases, even if data is stored on disk, a malicious player could still browse messages content.

[Kryptonite](https://github.com/hpgrahsl/kryptonite-for-kafka) aims at solving the problem by adding a Single Message Transform enabling client side encryption and decryption. Adding these SMTs gives the ability to add a layer of security on top of the standard connector one.