Detect "unhappy" installation states

- Warn when the version tuple (major, minor, patch) of Khiops does not match the Khiops Python library one
- Fix the types of the returned objects in `_build_status_message`
- Detect installation incompatibilities in an active conda environment
 - Detect installation incompatibilities in a conda-based environment or a virtual environment
 - Detect installation incompatibilities in a system-wide pip installation or user-site pip installation

Author: Thierry RAMORASOAVINA