implement tests for python 3.13

See merge request !78

[release] Compatibility fixes for scipy and matplotlib

See merge request !77

update test environments and fix CI

See merge request !73

[release] compatibility fixes, cli improvements and code formatting

See merge request !72

Update plugin guide

See merge request !71

update skeleton

See merge request !70

implement ci-matrix for different python and mpl versions

See merge request !69

minor fix for matplotlib 3.8 compatibility

See merge request !68

the join method of the GrouperView in matplotlib does not exist anymore (before it was forwarded to the _grouper attribute)

improve cli yaml options

Closes #59

See merge request !67

Fix enhanced attrs

See merge request !66

use the variable from the -n option for metadata

See merge request !65

Add metadata info

See merge request !64

improve guessing of coordinates based on their names

See merge request !63

fallback to nearest index when not found

See merge request !62

implement custom warning handling

See merge request !61

migrate to python-package-template

See merge request !60