mss: init at 9.1.0

[matrss]

Description of changes

https://github.com/Open-MSS/MSS is "A QT application, a OGC web map server, a collaboration server to plan atmospheric research flights.".

This PR adds a derivation for MSS and all of its dependencies that aren't available yet in nixpkgs. Except for metpy (too many network accesses) all run the upstream-provided test suite. The fastkml package has a dependency on pygeoif<1, so I've packaged pygeoif=0.7 instead of the latest version to satisfy that constraint.

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
  • NOTE: MSS provides a bunch of different entrypoints, because it is one package containing server and client code. The primary ones are msui, mscolab, and mswms, which I have tested. The mssautoplot entrypoint seems to be broken, not just here but also upstream.
• 24.11 Release Notes (or backporting 23.11 and 24.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

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[matrss]

Updated the PR:

• rebase onto master
• skyfield-data: 5.0.0 -> 6.0.0
• mss: 9.0.0 -> 9.1.0