One git submodule per rust crate modules?

[yvan-sraka]

When the project will be a bit more stabilized it would be nice to have this kind of splitting :)

[adrien-zinger]

Without going too far, we can just do an architecture pass in order to spot linked libs between wasm-simulation and massa

[AureliaDolo]

@damip that's what we were talking about downstairs, I convert that to a discussion