[bug#62375] Continue the npm-binary importer

[Pablo Zamora]

Dear Guix,

I am stuck while trying to define the 'bitwarden' package definition on my personal channel here https://github.com/Pablo12345678901/guix-custom-channel/blob/master/dev/my-bitwarden.scm . I am facing issues due to the npm dependencies.

One of the potential solution would be this importer. I would like to finish writing it and perform the tests.

On which branch should I send git pull request to continue what has been done so far ? This would be my first commit with guix.

Pablo Zamora