Limited api: 3.11+

[kif]

Enable a single wheel to be compatible with several versions of Python

Close #595

Merging depends on the result of the poll #620

[kif]

(py314) jerome@antarctica:~/workspace/fabio$ pip install fabio-2025.9.0a0-cp311-abi3-linux_x86_64.whl 
Processing ./fabio-2025.9.0a0-cp311-abi3-linux_x86_64.whl
Requirement already satisfied: numpy in /tmp/py314/lib/python3.14/site-packages (from fabio==2025.9.0a0) (2.3.2)
Requirement already satisfied: h5py in /tmp/py314/lib/python3.14/site-packages (from fabio==2025.9.0a0) (3.14.0)
Requirement already satisfied: hdf5plugin in /tmp/py314/lib/python3.14/site-packages (from fabio==2025.9.0a0) (5.1.0)
Requirement already satisfied: lxml in /tmp/py314/lib/python3.14/site-packages (from fabio==2025.9.0a0) (6.0.1)
Requirement already satisfied: pillow in /tmp/py314/lib/python3.14/site-packages (from fabio==2025.9.0a0) (11.3.0)
Installing collected packages: fabio
Successfully installed fabio-2025.9.0a0
(py314) jerome@antarctica:~/workspace/fabio$ python
Python 3.14.0rc2 (main, Sep  4 2025, 21:45:57) [GCC 12.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import fabio
>>> fabio.ext.dense
<module 'fabio.ext.dense' from '/tmp/py314/lib/python3.14/site-packages/fabio/ext/dense.abi3.so'>
>>> fabio.tests()
[...............]
----------------------------------------------------------------------
Ran 361 tests in 38.737s

OK (skipped=3)
Test suite succeeded