Check if existing models can be ported

[patientzero]

• As a researcher I need to clarify if it is possible to port sklearn models to Android so I can use my pretrained models

[AKuederle]

https://github.com/nok/sklearn-porter

[jcvasquezc]

Tensorflow lite does not support any RNN architecture so far.

Models to extract phonological features and additional complex staff have to be moved to the backend