Add new wet dry (deep learning) classification methods

Add more CML wet dry approaches into the intercomparison. Note all models should be trained and refined for the same classification step and type of dataset, or better, their training configuration should be well documented and included.

- From Pycomlink:  
  - nearby_wet_dry
  - mlp
  - 

- From PyNNCML:
  - dnn_gru?
  - 
 
- CNN model from cml_wd_telcosense 

