Ding0

This release adds Python 3.8 support, fixes several issues and extends tests.

- Added Python 3.8 support 325
- Fix installation with Conda 339

- CSV export in PyPSA format 307 this required further changes and fixing of tests, cf. 312
- Switched from pyproj1 to pyproj2 for CRS transformations 343
- Reproducible stats by fixing 315, for details see 324
- In the CSV export, (in-building) household loads and generators are no more contained as extra nodes but directly connected to the house's grid connection point to reduce the number of nodes 322
- Fix sum capacity of grid generators 326
- Fix PyPI description 311

This release amongst other changes and fixes introduces continuous testing, allows usage of ding0 without an oedb token and makes created grids deterministic.

This release introduces new plotting functionalities.

This release fixes the API documentation at readthedocs and the examples.

Just updating dependencies - no functional changes.