refactor: Move global into new pixi_global crate

[haecker-felix]

Moves the global module into a new pixi_global crate.

Had to move list::{PackageToOutput, print_package_table} and repodata::Repodata into the shared pixi_utils, as both pixi and pixi_core depend on these.

I'm not entirely sure if pixi_utils is the correct crate for that - but it would work finely, given that this stuff doesn't depend on any other pixi_* crate.

[tdejager]

This looks good to me. I'm unsure of the addition of these files to pixi_utils, probably pixi_utils is not that good of crate to begin with. However, we could just make a note to analyze when we have split more how to split up that crate. I know uv has a uv-traits for example for shared traits like the Repodata.

[Hofer-Julian]

CI is failing on Windows :)

[Hofer-Julian]

Changes look good to me. As soon as CI is green, we can merge this from my side

[haecker-felix]

CI is green now :)

[baszalmstra]

Instead of moving these files to pixi_utils (which is arguably the worst crate) I think we should keep them in core and let pixi_global depend on core.

[haecker-felix]

After all, yeah, that makes more sense. I moved them back into pixi_core 👍

[Hofer-Julian]

Great job!