added command service

api-lib-core/pom.xml

...va/de/ozgcloud/apilib/common/command/OzgCloudCommand.java

.../de/ozgcloud/apilib/common/command/OzgCloudCommandId.java

...zgcloud/apilib/common/command/OzgCloudCommandService.java

...ozgcloud/apilib/common/command/OzgCloudCommandStatus.java

...pilib/common/command/grpc/GrpcOzgCloudCommandService.java

...oud/apilib/common/command/grpc/OzgCloudCommandMapper.java

...gcloud/apilib/common/errorhandling/NotFoundException.java

...de/ozgcloud/apilib/file/grpc/GrpcOzgCloudFileService.java

...mon/command/grpc/GrpcCreateCommandRequestTestFactory.java

...b/common/command/grpc/GrpcOzgCloudCommandServiceTest.java

...apilib/common/command/grpc/OzgCloudCommandMapperTest.java

...pilib/common/command/grpc/OzgCloudCommandTestFactory.java

...zgcloud/apilib/file/grpc/GrpcOzgCloudFileServiceTest.java

pom.xml