Merge branch 'feat/111-ubi-unit-tests-for-policy-component' into 'develop'

.../src/main/java/org/etsi/tfs/policy/PolicyServiceImpl.java

...ava/org/etsi/tfs/policy/common/ApplicationProperties.java

.../main/java/org/etsi/tfs/policy/model/PolicyRuleBasic.java

...main/java/org/etsi/tfs/policy/model/PolicyRuleDevice.java

...ain/java/org/etsi/tfs/policy/model/PolicyRuleService.java

...rc/test/java/org/etsi/tfs/policy/PolicyAddDeviceTest.java

...c/test/java/org/etsi/tfs/policy/PolicyAddServiceTest.java

...est/java/org/etsi/tfs/policy/PolicyDeleteServiceTest.java

.../test/java/org/etsi/tfs/policy/PolicyGrpcServiceTest.java

...test/java/org/etsi/tfs/policy/PolicyUpdateDeviceTest.java

...est/java/org/etsi/tfs/policy/PolicyUpdateServiceTest.java

src/policy/target/kubernetes/kubernetes.yml