Merge branch 'issue-39-dedicated-benchmarks-directory' into 'master'

...olite/commons/workloadgeneration/functions/Transport.java

...kloadgeneration/generators/AbstractWorkloadGenerator.java

...workloadgeneration/generators/KafkaWorkloadGenerator.java

...dgeneration/generators/KafkaWorkloadGeneratorBuilder.java

...mons/workloadgeneration/generators/WorkloadGenerator.java

...e/commons/workloadgeneration/misc/WorkloadDefinition.java

...olite/commons/workloadgeneration/misc/WorkloadEntity.java

...theodolite/commons/workloadgeneration/misc/ZooKeeper.java