Kafka Audit Service : Improve error handling and miscellaneous refactoring

Kafka Audit Service : Improve error handling and miscellaneous refactoring

When Kafka Audit Service fails it no longer stops Blueprint Processor execution

* Add error handling when trying to hide sensitive data
* Add error handling when trying to send kafka message
* Set timeout for blocking loop when sending messages with kafka producer
	-> When broker is not available producer tries to reconnect in a blocking loop
* Refactor Audit Service interface to give more explict name for publish methods
* Modify publishExecutionOutput() to a non-blocking function

Issue-ID: CCSDK-2459
Signed-off-by: Julien Fontaine <julien.fontaine@bell.ca>
Change-Id: I809a5f34f81889aa9eed499608348f149984bc38