Mob Loot Tweaks

Modifies a few mob loot tables to give them a useful drop
frog – slimeballs
goat – mutton/string
camel – leather
fox – sweet berries
ocelot – string
turtle – scute with wither skull chances
ravager – leather
warden – echo shard
husk – sand
piglin – rare gold ingot, uncommon gold nugget
piglin brute – rare ancient debris, uncommon gold ingot, common gold nugget
elder guardian – rare heart of the sea, more drops than regular guardians
wither – wither roses