Add untested bonemeal mod compatibility shim

mods/MISC/bonemeal/init.lua

@@ -0,0 +1,12 @@
+bonemeal = {}
+
+function bonemeal:on_use(pos, strength, node)
+	-- Fake itemstack for bone meal
+	local itemstack = ItemStack("mcl_bone_meal:bone_meal")
+
+	local pointed_thing = {
+		above = pos,
+		under = vector.offset(pos, 0, -1, 0)
+	}
+	mcl_bone_meal.use_bone_meal(itemstack, nil, pointed_thing)
+end