[bug#55958]

[Nicolas Graves]

Hi !

This series of patches allows to produce the crx file without having to
rely on chromium and xorg.

Not fully tested, originally designed for fixing bug#55844, and works at
least for building a few extensions.

I volontarily built all node packages without development dependencies
(npm...) so that it stays simple, and replaced mri by minimist so that we
also avoid a lot of dependencies.

Cheers,

Nicolas