OZG-7909 save incoming aggregation data in mogno db

aggregation-manager-server/pom.xml

...in/java/de/ozgcloud/aggregation/data/AggregationData.java

...ozgcloud/aggregation/data/AggregationDataGrpcService.java

...a/de/ozgcloud/aggregation/data/AggregationDataMapper.java

.../ozgcloud/aggregation/data/AggregationDataRepository.java

.../de/ozgcloud/aggregation/data/AggregationDataService.java

...oud/aggregation/data/CustomAggregationDataRepository.java

...aggregation/data/CustomAggregationDataRepositoryImpl.java

.../aggregation/data/GrpcAggregationDataRequestObserver.java

...n/java/de/ozgcloud/aggregation/data/GrpcObjectMapper.java

...ud/aggregation/mapping/AggregationMappingGrpcService.java

...loud/aggregation/data/AggregationDataGrpcServiceTest.java

.../ozgcloud/aggregation/data/AggregationDataMapperTest.java

...ozgcloud/aggregation/data/AggregationDataServiceTest.java

...ozgcloud/aggregation/data/AggregationDataTestFactory.java

...egation/data/CustomAggregationDataRepositoryImplTest.java

...regation/data/GrpcAggregationDataRequestObserverTest.java

...loud/aggregation/data/GrpcAggregationDataTestFactory.java

...va/de/ozgcloud/aggregation/data/GrpcObjectMapperTest.java

...a/de/ozgcloud/aggregation/data/GrpcObjectTestFactory.java