Proposed changes to `bindings --pkg-name`

[asteurer]

I think that the bindings --pkg-name option should automatically create imports and exports folders. This would mean that we could also remove the bindings --export-pkg-name option. I think this would offer more clarity and less friction. This will require edits to both wit-bindgen-go and componentize-go.

Just in case the above isn't clear:

Current:

$ mkdir -p internal/exports
$ componentize-go \
    bindings \
    --output internal/imports \
    --pkg-name internal/imports \
    --export-pkg-name internal/exports
$ mv internal/imports/wit_exports imports/exports
$ ls internal
exports  imports

Proposed:

$ componentize-go bindings --output internal --pkg-name internal
$ ls internal
exports  imports

@dicej Any thoughts/concerns?

[dicej]

Sounds fine to me. I just want to make sure we can still generate the package hierarchy in spin-go-sdk specified here. It seems like that should work with what you've proposed here.