Give the user feedback on how the model and interface is parsed

[KristofferSkare]

This tool will only be provided some files e.g onnx and json. Therefore it might be hard for the user to know if everything is set up correctly before using the tool. The onnx file is especially hard to know if it is set up and interpreted/used correctly by the tool. I can think of several ways where the tool will successfully run and produce an fmu and the fmu might also run successfully, but the fmu will not have the intended behavior. This kind of error will likely come from the ml model or json interface not being compatible or set up wrong by the user. However, with no feedback it might be very hard for the user to know what they did wrong.

Therefore it might be nice to give the user some feedback on the resulting parsing of the files that are used to generate the fmus. This could be printing something to the terminal or producing a logging file in addition to the generated fmu.