Include saving model in docs/tutorial

[gautam0826]

Can an example of serializing models and datasets to disk be included in the tutorials and/or docs? Additional help on using ONNX would be helpful too.

[Craigacp]

Sure, we can add examples of serialization to the docs. At the moment serialization is using standard java.io.Serializable mechanisms, you can see examples of loading models & datasets here and saving them here from the demo programs that come with Tribuo. Note that you should use a serialization allow list to guard against some deserialization attacks, there's a note in our security docs.

The best examples for the ONNX loaders at the moment are in the unit tests. We'll add a tutorial that goes through the third party model loading process.