OZG-5093 update licence

...main/java/de/ozgcloud/bescheid/BescheidEventListener.java

.../java/de/ozgcloud/bescheid/attacheditem/BescheidItem.java

...e/ozgcloud/bescheid/attacheditem/BescheidItemService.java

...ava/de/ozgcloud/bescheid/attacheditem/BescheidMapper.java

.../main/java/de/ozgcloud/bescheid/attacheditem/FieldId.java

...scheid/attacheditem/VorgangAttachedItemRemoteService.java

...oud/bescheid/attacheditem/VorgangAttachedItemService.java

...gcloud/bescheid/command/OzgCloudCommandRemoteService.java

.../de/ozgcloud/bescheid/command/OzgCloudCommandService.java

...gcloud/bescheid/attacheditem/BescheidItemServiceTest.java

...gcloud/bescheid/attacheditem/BescheidItemTestFactory.java