fixes for addressing issue #63

.../java/org/etsi/osl/tmf/ri639/repo/ResourceRepository.java

.../etsi/osl/tmf/ri639/reposervices/ResourceRepoService.java

.../java/org/etsi/osl/tmf/sim638/repo/ServiceRepository.java

...a/org/etsi/osl/tmf/sim638/service/ServiceRepoService.java

...a/org/etsi/osl/tmf/so641/repo/ServiceOrderRepository.java

...i/osl/tmf/so641/reposervices/ServiceOrderRepoService.java

src/main/resources/application.yml

...si/osl/services/api/ResourceInventoryIntegrationTest.java

.../etsi/osl/services/api/sim638/ServiceRepoServiceTest.java

.../services/reposervices/ri639/ResourceRepoServiceTest.java