Improved industrialization support: persisting of model (configuration), reapeated model scoring, model monitoring

[sandervh14]

Add functionality to write away model metadata

It would be nice to have a function for writing away the date and time of each new modeling attempt, which variables were selected, which preprocessing was done and which was the resulting score.

Task Description

This could comprise:

• store model metadata (scores, datetime, version etc) in a table
• storage of files involved (model and preprocessor pickle, and potentially the data) on some filestorage or database blobs.

Provide the code for extracting this metadata, but allow a data scientist/engineer to write a plugin function to do the actual writing of the metadata to the database/filestore of choice.