Replace native code with https://koffi.dev/index

[CMCDragonkai]

Specification

There's minimal native code here, it might be more maintainable with just https://koffi.dev/index.

Not sure though. I'm thinking about applying this to fd-lock and js-file-locks too.

Additional context

• https://koffi.dev/index

There's a minor amount of overhead using dynamic FFI as compared to statically compiled binaries. But I don't think this is a major issue for mdns usage? Could there be other native code we would want to run in the future?

Also this may not be a good idea if we want js-mdns to work on Android and iOS, I don't know if it would work.

Tasks

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