Build conda package for phoenixcmake

phoenixcmake is a good candidate to be a pathfinder for building conda packages for phoenix as it has no dependencies.

• Write recipe.yml for phoenixcmake and build the package locally with rattler-build
• Make the recipe.yml configurable with the package information already contained in the CMakeLists (pakcage name, version, authors, etc.)
• Test installing another phoenix package with the phoenixcmake conda package installed in a conda environment (use docker image to avoid conflict with other phoenixcmake installs)

FYI @paubert