Merge branch 'feature/refactoring' into 'master'

.../VNFLifecycleManagement-API/CancelOperationWorkflow.robot

...anagement-API/ChangeExternalVNFConnectivityWorkflow.robot

...VNFLifecycleManagement-API/ChangeVNFFlavourWorkflow.robot

SOL003/VNFLifecycleManagement-API/CreateVNFWorkflow.robot

SOL003/VNFLifecycleManagement-API/DeleteVNFWorkflow.robot

...03/VNFLifecycleManagement-API/FailOperationWorkflow.robot

SOL003/VNFLifecycleManagement-API/HealVNFWorkflow.robot

...FLifecycleManagement-API/InstantiateVNFTaskWorkflow.robot

...ifecycleManagement-API/ModifyVNFInformationWorkflow.robot

SOL003/VNFLifecycleManagement-API/OperateVNFWorkflow.robot

...3/VNFLifecycleManagement-API/RetryOperationWorkflow.robot

...NFLifecycleManagement-API/RollBackOperationWorkflow.robot

.../VNFLifecycleManagement-API/ScaleVNFToLevelWorkflow.robot

SOL003/VNFLifecycleManagement-API/ScaleVNFWorkflow.robot

...03/VNFLifecycleManagement-API/TerminatelVNFWorkflow.robot

.../NSLifecycleManagement-API/CreateNSInstanceWorkflow.robot

.../NSLifecycleManagement-API/DeleteNSInstanceWorkflow.robot

SOL005/NSLifecycleManagement-API/HealNSTaskWorkflow.robot

...NSLifecycleManagement-API/InstanciateNSTaskWorkflow.robot

SOL005/NSLifecycleManagement-API/ScaleNSTaskWorkflow.robot