rpg-cli: init at 0.2.0

[legendofmiracles]

Motivation for this change

Cargo.lock isn't checked in, for now we patch it, but I opened a issue facundoolano/rpg-cli#26

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
• 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 nixpkgs-review --run "nixpkgs-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Added a release notes entry if the change is major or breaking
• Fits CONTRIBUTING.md.

[legendofmiracles]

Result of nixpkgs-review pr 124539 run on x86_64-linux 1

1 package built:

• rpg-cli