Useful Brush

fix breaking progress not showing when a brush is in the inventory - #13

• Breaking - move brushables to brushable/block see README for more info

• simply how brushing behavior of entities - drops are now simply handled via loottables
• make mossy blocks drop mossblock instead of slime
• parrots now drop feathers
• turtles now drop turtle scutes
• brown mooshrooms drop brown mushrooms
• increase tool damage

improve vanilla Armadillo brushing

make all no hitbox blocks brushable

make sand, red-sand, and gravel possible to brush away