Add progress report during the train #8
Description
Currently, after send a request for train/tune the network, the browser will wait the completation of the request without show any information.
This because the request is not managed in background and no progress file are produced.
A very basic progress bar, can be created exposing a file where some progress information are written during the train. Than the user will refresh the browser page where the file is exposed in order to understand the time spent and the work remaining.