beets-unskipper: a plugin to manage your skipped folders easily

[FlorentLM]

I made this plugin for my own use, but it might help others so there it is. The core function is to allow you to remove folders from the state.pickle file to "unskip" them.

But it also does a few other maintenance-related things, for instance it has a database migration function so you can remap your beets library.db and the state file to new paths.

Cheers :)