OZG-7092 do refactoring

...rc/main/java/de/ozgcloud/token/TokenCheckGrpcService.java

...n/java/de/ozgcloud/token/TokenValidationResultMapper.java

...est/java/de/ozgcloud/token/GrpcCheckErrorTestFactory.java

...st/java/de/ozgcloud/token/GrpcCheckErrorsTestFactory.java

...a/de/ozgcloud/token/GrpcCheckTokenRequestTestFactory.java

.../de/ozgcloud/token/GrpcCheckTokenResponseTestFactory.java

...st/java/de/ozgcloud/token/GrpcOtherFieldsTestFactory.java

...ava/de/ozgcloud/token/GrpcTokenAttributesTestFactory.java

...est/java/de/ozgcloud/token/TokenCheckGrpcServiceTest.java

...va/de/ozgcloud/token/TokenValidationResultMapperTest.java

...token/common/errorHandler/ValidationErrorTestFactory.java