Improve packaging for various platforms

Our CI currently only publishes Docker images and adds binary artifacts to the release, e.g. here (at the bottom). We need to greatly simplify re-use of Martin:

• debian packages
• homebrew (used to work before?)
• cargo install from crates.io - Martin at the moment uses internal non-published mbtiles crate - we need to either publish them if reasonable, or move the code into a sub-module
• windows install (is this still a thing?)
• packaging for other platforms, and publish it to relevant package repositories

Useful links:

• tutorial
• (?) https://github.com/axodotdev/cargo-dist/
• https://github.com/sharkdp/bat/blob/master/.github/workflows/CICD.yml -- this is how bat creates debian packages in CI
• use https://repology.org/ to track packaging on different platforms -- currently only found this one
  • https://github.com/NixOS/nixpkgs/blob/release-21.11/pkgs/servers/martin/default.nix - someone's maintaining (outdated) Urbica version here