Support mutiple package managers for environment creation

[Soap2G]

The current install_from_environment correctly identifies both Conda and Pip dependencies within the file, but it deliberately installs only the Pip packages.

We shuold support both Conda and Pip as package managers, providing a more complete and versatile environment setup tool.

Proposal

The script should:

• Detect the available package manager: Check if conda or mamba is available in the system's environm
• Install Conda Dependencies: If Conda/Mamba is available, use it to install the packages listed in the conda_packages list.
• Install Pip Dependencies: Continue to use pip to install the packages listed in the pip_packages list, as is the current behavior.
• Error Handling: If Conda is required for certain packages but not available, the script should raise an informative error to the user.

[kratsg]

Please don't create your own package manager for installing dependencies. You should tell people to write their own using those package managers. ./cc @matthewfeickert

[matthewfeickert]

Yes, please don't do this. Just use Pixi if you want to have a single tool.

Note: I haven't looked at what atlasopenmagic does, but if you're just manipulating conda packages and Python packages, please use the existing tools.

[Soap2G]

Hey both, thanks for the suggestion!
We're definitely going to look into Pixi & co.