Objentry additions

[Rikux3]

Updated some previous unknown fields and the documentation

[Xeeynamo]

All good with an exception IMHO:
On Objentry.cs:59, by specifying an empty description would not lead to an empty label? If you speicfy a [Description] rather than [Description("")] would make it fall back to E_OBJ by default. I did not tested it, so could you confirm if the behaviour is the one you expect to see?

Also I've seen you're having fun with C# Reflection for the Objentry.Clone()! While I do not see any problem in this specific scenario, people on internet can slightly disagree on its usage due to performance or possible bugs. One of them, for example would be if the property does not have a setter, making the field.SetValue fail at runtime and not at compilation time.
But since this is just an opinion not related to this scenario, I would keep as it is in your Pull Request!

[Rikux3]

[Description] and [Description("")] show the same in the UI = an empty string. It seems that the Attribute isn't using the enum name as a fallback. I have removed the empty descriptions nevertheless because they looked ugly.

I didn't like the way i've implemented the Clone function before, because it didn't recognize changes in the structure of the object. I've also thought about implementing the IClonable interface but in the end i've liked the Reflection approach better (although it can have side effects).

[Xeeynamo]

Looks good 👍