Resolve changes to extra mod

[oversword]

• We make a lot of modifications of the extra mod in our BLS_custom mod, most notably we recently modified crafts to use groups instead of specific items (cheese, meat, raw meat).
• Since we fork this mod we should probably just make these changes to the extra mod itself
• This will also give us a chance to merge the latest changes if any from the original repo
• We could also take this opportunity to refactor it a bit