Package structure on Windows

[pradal]

The package is built but not functional on Windows.
Its structure is not correct.

The actual structure

| - ROOT
| - include /openalea.stat_tool/stat_tool/*.h 
| - Lib / site-packages / openalea / stat_tool / *.py
| - Lib / site-packages / lib
| - Lib / site-packages / bin

There are several errors

1. include : either include/openalea/stat_tool or include/stat_tool directly
2. Extension module in Python on windows is _stat_tool.pyd and not _stat_tool.dll
3. include, lib, bin, share go to ROOT/Library/include ROOT/Library/lib/.lib ROOT/Library/bin/.dll

[pradal]

Everything is set by conda-build.
We need to look other conda-forge projects.

A list of projects: https://github.com/search?type=code&q=org%3Aconda-forge+scikit-build-core+boost+path%3Arecipe%2Fmeta.yaml

With one close to : https://github.com/3dgeo-heidelberg/helios