Cleanup code

...ommon/src/main/java/common/dimensions/copy2/Duration.java

...ommon/src/main/java/common/dimensions/copy2/KeySpace.java

...-common/src/main/java/common/dimensions/copy2/Period.java

...r-common/src/main/java/common/functions/BeforeAction.java

...mmon/src/main/java/common/functions/MessageGenerator.java

...ator-common/src/main/java/common/functions/Transport.java

...mon/src/main/java/common/functions/copy/BeforeAction.java

...src/main/java/common/functions/copy/MessageGenerator.java

...common/src/main/java/common/functions/copy/Transport.java

...n/src/main/java/common/generators/IWorkloadGenerator.java

...c/main/java/common/generators/KafkaWorkloadGenerator.java

...java/common/generators/KafkaWorkloadGeneratorBuilder.java

...on/src/main/java/common/generators/WorkloadGenerator.java

.../main/java/common/generators/copy/IWorkloadGenerator.java

...n/java/common/generators/copy/KafkaWorkloadGenerator.java

...common/generators/copy/KafkaWorkloadGeneratorBuilder.java

...c/main/java/common/generators/copy/WorkloadGenerator.java

...r-common/src/main/java/common/messages/OutputMessage.java

...mon/src/main/java/common/messages/copy/OutputMessage.java

...on/src/main/java/common/messages/copy2/OutputMessage.java