DNN experiment setup

[mralioo]

Design and prepare the experiment design of DNN model training for within Subject and Cross Subject approaches.

• [x] Adapt the nn pipeline to the current sklearn pipeline
• [ ] Data Transformation
  • [ ] Downsampling
  • [ ] Snippets
  • [ ] Normalization
• [x] Loss function ,unbalanced data
• [x] Metrics
• [ ] weights inits
• [ ] Transfer learning
• [x] Save / Load model (pkl)