DnT Mineshaft Overhaul v1.1

• Updated all dirt rooms in every mineshaft variant to have a guranteed minecart with a chest
  • this is to ensure every mineshaft has the ability to create the music disc for sulfur caves
• Sulfur Caves has been added as viable biomes for the mineshaft to generate in
• Processor has been updated so dirt turns into sulfur/cinnabar whenever it generates where those blocks would have generated