Serialize object graph down to the certain depth

[cemmerven]

Like Newtonsoft's Json serializer, serializing object graph to the certain depth may be useful in some use cases like O/R Mappers. (P.S. newtonsoft is actually limit depth while deserializing but not serializing).
Stack overflow json.net limit maxdepth when serializing discussion is a good example of such scenario.

[rikimaru0345]

There are settings to limit the maximum number of elements in collections, max length of strings, etc.. everything that is dynamic.
Except for "depth", there's no setting for that yet.
I guess it could be added into the ReferenceFormatter pretty easily, just increase/decrease a value in ceras.InstanceData...

Unfortunately I don't have any time currently to work on this.