Bugfix/to geopandas

[birgits]

Description

I was using the to_geopandas() functionality to plot our grids in QGIS and saw, that the line geometries were created in a wrong way. This is because lists were used to set up the bus0 and bus1 geometries and from them get the LineString. Lists have a random order wherefore the LineStrings ended up being between random buses. I therefore changed the code to use Series instead, so that the geometry is always matched to a specific line. In the course of that I also enabled that the function can be applied to LV grids and the entire grid topology in the Topology object.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• New and adjusted code is formatted using the pre-commit hooks
• New and adjusted code includes type hinting now
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• The Read the Docs documentation is compiling correctly
• If new packages are needed, I added them the setup.py, and if needed the rtd_requirements.txt, the eDisGo_env.yml and the eDisGo_env_dev.yml.
• I have added new features to the corresponding whatsnew file