Python-glmnet

Changed
* Parameterized unit tests in nox to test a range of python versions > 3.10 and
numpy >1.26
* Trying to get 3.9 to work is a bust

Changed
* In root `meson.build`, replace `import numpy` and `numpy.f2py.get_include()` to
`from numpy import f2py` and `f2py.get_include()` to allow numpy < 2.0 to work
* Rewrote unittest-style tests as pytest-style tests
* Add Nox
* Formatting and linting using Ruff
* Revert usage of structural pattern matching so earlier versions of python work

Changed
* Python version support: Allow 3.12 and newer versions of numpy
that lack numpy.code.distutils
* Replace Numpy-based build system with Meson
* Remove setup.py and move all information into pyproject.toml
* Formatting and linting using Ruff
* Changed package layout to src-type, moved tests outside

Unreleased

Changed
* [3](https://github.com/replicahq/python-glmnet/pull/3)
- Python version support: Add 3.10 and 3.11, drop 3.8 and below.

Fix
* [65](https://github.com/civisanalytics/python-glmnet/pull/65)
Remove `six` dependency entirely.

Changed
* [57](https://github.com/civisanalytics/python-glmnet/pull/57)
Mark the Fortran code as linguist-vendored so that GitHub classifies
this project as Python (37).
* [62](https://github.com/civisanalytics/python-glmnet/pull/62)
Update the cross-validation for users to be able to define groups of
observations, which is equivalent with *foldid* of *cvglmnet* in *R*.
* [64](https://github.com/civisanalytics/python-glmnet/pull/64)
- Python version support: Add v3.8, and drop v3.4 + v3.5.
- Maintenance: Drop versioneer; update and pin dependencies for development.