Publish our package on conda-forge

[lucaurelien]

[bruno-at-orange]

The documentation is here.

About signing macOS packages, the only example I found is gdb

[bruno-at-orange]

Conda packages built on a macos without signature work fine, without any pop-up. I suggest to remove the signature part from https://github.com/KhiopsML/khiops/blob/3760d03a11fd6516eee284248d60f54e036de0ab/packaging/conda/build.sh#L24

[bruno-at-orange]

khiops-core and kni are available on conda-forge for the version 10.3.0. It is available for Linux, Windows, macos (arm and x86) and all the tests on the internal LearningTest are OK (except for KNI which cannot be tested because KNItransfer is not packaged). Some notes:

• on Linux we use OpenMPI
• on macOS:
  • OpenMPI is blocked by firewall (see issue)
  • we use mpich=4.0.3 because for version above, there is a deadlock (issue here). The deadlock disappears when setting FI_PROVIDER=tcp
• on Windows: khiops_env.cmd location is %PREFIX%/Library/bin