Improve code quality

To improve, or just not degrade, the quality of the code, we can introduce some tools. For example by using the pylint_report.py tool as a commit (or push) hook to check that the pylint score of modified files have not been degraded.

A possible solution would be to save (ie: dataframe, csv file...) the develop pylint score of all files and compare with the dataframe returned by the tool.

We may have to add the tool as a conda entry point.