Increased Trapdoors Recipe Output

updated to 1.21.2-1.21.8

• Added Pale Oak Trapdoor

• Changed project to Increased Trapdoors Recipe Output to be inclusive of metal trapdoors (previous name was 6 Trapdoors).

• Removed mod support because some internal stuff change in some updates and it's too much for me when I'm not playing with any content mods at the moment. If I do bring back mod support eventually, it'll be a separate datapack/mod instead of being part of this one.