Merge branch 'feature/topLevelPackageJava' into 'master'

...main/java/spesb/uc2/streamprocessing/SensorParentKey.java

...java/spesb/uc2/streamprocessing/SensorParentKeySerde.java

...main/java/spesb/uc2/streamprocessing/TopologyBuilder.java

.../spesb/uc2/streamprocessing/OptionalParentsSerdeTest.java

...est/java/spesb/uc2/streamprocessing/ParentsSerdeTest.java

.../spesb/uc2/streamprocessing/SensorParentKeySerdeTest.java

...src/test/java/spesb/uc2/streamprocessing/SerdeTester.java

...t/java/spesb/uc2/streamprocessing/SerdeTesterFactory.java

uc2-workload-generator/build.gradle

...or/src/main/java/spesb/kafkasender/KafkaRecordSender.java

...ain/java/spesb/uc2/workloadgenerator/ConfigPublisher.java

.../main/java/spesb/uc2/workloadgenerator/LoadGenerator.java

...java/spesb/uc2/workloadgenerator/LoadGeneratorExtrem.java

uc3-application/build.gradle

...rc/main/java/spesb/uc3/application/ConfigurationKeys.java

...n/src/main/java/spesb/uc3/application/HistoryService.java

.../java/spesb/uc3/streamprocessing/KafkaStreamsBuilder.java

...main/java/spesb/uc3/streamprocessing/TopologyBuilder.java

...in/java/spesb/uc3/streamprocessing/util/StatsFactory.java

uc3-workload-generator/build.gradle