Mega Potato [NeoForge/Forge]

Changes:

Made the big baked potato cookable in the smoker and on the campfire.

Changed most advancements to be more clear.

Added the block of potato ash as a background for advancements

Changed the recipes of the big potato and the massive potato to avoid conflicts with other mods. (now uses 8 potatoes instead of 9, this in turn makes the mega potato a bit cheaper)