ENH: New functions getEnumNameFromValue() and getEnumValueFromName()

Summary

See title.

Focus

Do the new functions cover the use cases of higher-order client libraries?

Test Environment

make test, look into test_utility.cpp.

Check List for the Author

Please, prepare your MR for a review. Be sure to write a summary and a focus and create gitlab comments for the reviewer. They should guide the reviewer through the changes, explain your changes and also point out open questions. For further good practices have a look at our review guidelines

• All automated tests pass -> Please run clang-format on a more recent version than available here.
• Reference related Issues -> No explicit issue
• Up-to-date CHANGELOG.md
• Annotations in code (Gitlab comments)
  • Intent of new code
  • Problems with old code
  • Why this implementation?

Check List for the Reviewer

• I understand the intent of this MR
• All automated tests pass
• Up-to-date CHANGELOG.md
• The test environment setup works and the intended behavior is reproducible in the test environment
• In-code documentation and comments are up-to-date.
• Check: Are there specifications? Are they satisfied?

For further good practices have a look at our review guidelines.

include/caosdb/file_transmission/download_request_handler.h

@@ -74,8 +74,7 @@ using caosdb::transaction::HandlerTag;
 class DownloadRequestHandler final : public HandlerInterface {
 public:
   DownloadRequestHandler(HandlerTag tag, FileTransmissionService::Stub *stub,
-                         grpc::CompletionQueue *cq,
-                         FileDescriptor file_descriptor);
+                         grpc::CompletionQueue *cq, FileDescriptor file_descriptor);
 
   ~DownloadRequestHandler() override = default;