Motivation for this change

Most of the relevant ham radio applications tend to end up in misc, but there's a quite wide range of applications out there and I intend to package more of them up since nixpkgs is quite lacking in that field. Sure we have some of the beasts (like gnuradio) but we're still missing out on lots of them.

So this is my initial attempt to just gather existing derivations in one place.

I'm pretty sure that there's no changed packages at all so I don't think there should be any rebuilds. But I will check this when the builder bot have done some work.

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Assured whether relevant documentation is up to date
• Fits CONTRIBUTING.md.