1.20-1.21.10 Support!

I believe I didn't properly test v2.1 correctly,,, So now I finally fixed the "broken pack" issue, along with also adding proper support for 1.20

v2.2

Changes:

• Updated Pack_Format to 15
  • This change allows for 1.20.x to fully work.
• Pack now supports pack formats 15, 70

    "pack_format": 15,
    "supported_formats": {
      "min_inclusive": 15,
      "max_inclusive": 70
    },
    "min_format": [15],
    "max_format": [70, 0]
  

  ^ This took AGES to figure out.