Libsonata

Added:
- Implemented `node_sets` functionality (107)
- Handle pathlib.Path for paths (113)
- Add __repr__ to python Selection binding, aswell as the (Node|Edge)Population (114)

Fixed:
- Fix python bindings for Selection with negative values (112)
- Fix regression from move to GitHub actions

- Use common docstrings between C++ and Python
- Better documentation
- Report readers documentation
- Bump HighFive and pybind11
- Numpy arrays for the report outputs

Fixed:

- Fixed python sdist distribution by disabling test requirements
- Fix report_reader to have several time the same index

Added:

- convenience method to create a Selection of all members of a Population (60)
- make bbp::sonata::Selection comparable (62)
- comparison for node attributes to values (64)
- intersection and union for selections (67)
- output reader for spikes, somas and elements (71)

Fixed:

- Mac python wheels (77)