Add exception for Kafka readstream when decryption fails

A silent failure is possible when reading from a Kafka broker under the following circumstances:

SDF.isStreaming = True

SDF.printSchema() => returns expected schema

Query results are empty.

Issue: Tsl Decryption has failed, but there is no exception or warning.

Request: Add a warning throw an exception when decryption fails, such that developers can efficiently diagnose the readstream problem.

This is my first ticket submitted. Please notify me if I should change anything in this ticket to make it more conformant to community standards. I'm still a beginner with Spark.