Multi-platform binary builds

[alensiljak]

@ebcrowder suggests a useful way to produce a multi-platform binaries, as specified in:
https://github.com/ebcrowder/rust_ledger/blob/main/.github/workflows/release.yml

The idea is borrowed from
https://github.com/BurntSushi/ripgrep

[alensiljak]

I'd add that, eventually, Wasm might be one the main targets, as it allows console execution (wasi) as well as interoperability with other libraries (component model, still a draft), and runs in a browser (wasm).