LMS-2033 Implemented improved transaction facility.

.../java/ch/systemsx/cisd/etlserver/BaseDirectoryHolder.java

...r/source/java/ch/systemsx/cisd/etlserver/FileRenamer.java

...ch/systemsx/cisd/etlserver/TransferredDataSetHandler.java

...strator/AbstractOmniscientTopLevelDataSetRegistrator.java

...isd/etlserver/registrator/DataSetRegistrationService.java

...x/cisd/etlserver/registrator/DataSetStorageAlgorithm.java

.../etlserver/registrator/DataSetStorageAlgorithmRunner.java

...lserver/registrator/DefaultEntityRegistrationService.java

...isd/etlserver/registrator/IEntityRegistrationService.java

...d/etlserver/registrator/JythonTopLevelDataSetHandler.java

...ver/registrator/api/v1/impl/AbstractTransactionState.java

...gistrator/api/v1/impl/DataSetRegistrationTransaction.java

...s/generic/shared/dto/AtomicEntityRegistrationDetails.java

...ss/generic/shared/dto/AtomicEntityRegistrationResult.java

...ss/generic/shared/dto/DataSetRegistrationInformation.java

...ver/registrator/JythonTopLevelDataSetRegistratorTest.java

...rator/api/v1/impl/DataSetRegistrationTransactionTest.java