Package phoenix2 using conda

Phoenix2 library repositories should provide packages in the conda package format.

Motivation

The conda package format is cross-platform, operating system independent, language agnostic and packages can be installed without elevated privileges. It is a good candidate to make the library easily usable by others.

Tools

The conda eco-system has shifted from the anaconda company to the open-source, community oriented mamba, and now new softwares developed by prefix.dev. The key softwares are:

• pixi: a environment/workspace manager based on conda packages
• rattler-build: a conda format package builder
• quetz: open source server to self-host conda channels
• https://prefix.dev/channels: community maintained conda package channels on prefix.dev infrastructure

Story list

• #4 (closed) - Set up conda package hosting solution
• #8 (closed) - Pathfinder: conda package of a phoenix2 repository
• #12 - Generalization to entire Phoenix2 library

FYI @thibaut.oprinsen @paubert