update to 1.21
added loottable for ancient debris
textures
fix custom blockstate sample crash
weird fix
fixed mixinextras issue
fix worldgen
-added more config,
-tweaked sparse deposit gen
-disable modded ore gen by default, in config
-added more samples for other mods, betterend, betternether, enderscape, bewitchment
port to 1.20
added more config