add some popular ml framework examples

[rom1504]

I think it could be interesting to add some example of using this lib with

• pytorch lightning (something like https://pytorch-lightning.readthedocs.io/en/latest/common/lightning_cli.html )
• huggingface (for example fine tuning some bert for classification https://huggingface.co/transformers/training.html)
• keras (for example fine tuning efficientnet for classification https://keras.io/examples/vision/image_classification_efficientnet_fine_tuning/#transfer-learning-from-pretrained-weights)
• deepr (the mlflow example)

It could make this lib even easier to start using