Enrich DLQ error model with application ID

[SouquieresAdam]

Problem

The current Avro Error model of kstreamplify does not explicit the name of the application that created the DLQ messages. It comes from the framework envision to use one DLQ per microservice/app.

Suggestion

Add application.id to the Avro error model to allow more flexible DLQ assignement (per bounded-context, group of application). It should be compatible since it's a new optional information.

NB: Specify label(s) in the right panel to ease the requests organization