Increment version to v0.4.1

Using python 3.10

Added missing `self` argument to methods:

    - `xaxisRange`,
    - `xaxisRangeSliderYaxisRange`,
    - `yaxisRange`,
    - `yaxisRangeSliderYaxisRange`,

Increment version to v0.3.1

Bump version 0.3.0

Bump to version 0.2.0

Fixed warning on visibility of PythonInit

Added (non implemented for now) python test files

Update readme short description