Use a more minimal version of sponsorblock which neither caches the
results locally, nor allows many of the fancy things that the python
plugin allows.
On the other hand, it is lua-only and does not depend on python, and
fulfills the same basic functionality: skipping sponsorship segments.
You can toggle the plugin on and off by pressing `b`.
Additionally, it also works on files played locally, if those carry a
yt identifier in their filename.
