Better Biomes O' Plenty support.

[MagmaBro123]

Biomes o' Plenty adds its own netherrack mycelium, a config option should be added to allow the fungi forest/mushroom forest to use BoP's netherrack or BetterNether's netherrack mycelium (Or whatever it should've been called since again, no name is specified in the F3 debug, which all other biomes do, so I'm confused as to why this doesn't) to prevent 2 types of nether mycelium from being created, though BetterNether's tiny mushrooms would need to be changed to have compat. with its mycelium.