Improve ML-Flow model

[jsvobo]

Implement better ML module for detecting malicious flows.

Branch off from improve-mlflow-detection , try idfferent models, improve metrics.

Requirements:
Save .bin , the end user should be able to fine-train the model with own traffic
Select models which can do that.
save .bin from the scaler/ preprocessing

[jsvobo]

@eldraco Feel free to add to the issue some more precise instructions or requirements for the final model/ training.