Yeet Spooky Cave Sounds!

Updated pack.mcmeta to support versions 1.18 and above

• Removed unnessecary files
• Updated to 1.21

Support for 1.20 and 1.20.1

Support for 1.20.2

Support for 1.20.5 and 1.20.6

Support for 1.20.4 and 1.20.3