What is the correct way to add a block to the world Ore Generation ?   i tried it this way (but no Ore found) :  package de.madone.ocdtorcher.world.feature; import com.google.common.collect.ImmutableList; import de.madone.ocdtorcher.block.ModBlocks; import net.minecraft.init.Blocks; import net.minecraft.world.biome.Biome; import net.minecraft.world.gen.GenerationStage; import net.minecraft.world.gen.feature.Feature; import net.minecraft.world.gen.feature.MinableConfig; import net.