Align package structure uc4 hzj

theodolite-benchmarks/uc4-hazelcastjet/build.gradle

...heodolite/benchmarks/uc4/hazelcastjet/HistoryService.java

...e/benchmarks/uc4/hazelcastjet/Uc4HazelcastJetFactory.java

...enchmarks/uc4/hazelcastjet/Uc4KafkaPropertiesBuilder.java

...olite/benchmarks/uc4/hazelcastjet/Uc4PipelineBuilder.java

.../uc4specifics/AggregatedActivePowerRecordAccumulator.java

...c4/hazelcastjet/uc4specifics/ChildParentsTransformer.java

...arks/uc4/hazelcastjet/uc4specifics/EventDeserializer.java

...hmarks/uc4/hazelcastjet/uc4specifics/HashMapSupplier.java

...et/uc4specifics/ImmutableSensorRegistryUc4Serializer.java

...chmarks/uc4/hazelcastjet/uc4specifics/SensorGroupKey.java

...4/hazelcastjet/uc4specifics/SensorGroupKeySerializer.java

.../benchmarks/uc4/hazelcastjet/uc4specifics/ValueGroup.java

...s/uc4/hazelcastjet/uc4specifics/ValueGroupSerializer.java

...test/java/theodolite/uc4/application/Uc4PipelineTest.java