Rustdoc-equivalent solution for other languages

[ok300]

The SDK has API and data model documentation in the form of rustdocs.

We need a way to provide similar docs for the other languages we support.

[ok300]

A few comments from @dangeross :

It would have to be from comments in the UDL file. There are docstring’s officially in uniffi 0.25.0, which I think parse the comments from the UDL file which can then be used in the generator. I believe it was implemented by NordSecurity (they created the Go / C# bindgen’s) originally in a fork of uniffi-rs for 0.23.0

So we could potentially use their fork
https://github.com/NordSecurity/uniffi-rs/tree/main?tab=readme-ov-file#ad-hoc-features

[erdemyerebasmaz]

We can use dartdoc for Flutter plugin. It's usable out of the box but we'll need to tinker around with it's configuration to exclude most of generated rust bridge elements(wire2api, api2wire sections etc.) as they are gibberish to API users.