add vipworld modpack

mods/vipworld/darkage/stairs.lua

@@ -0,0 +1,17 @@
+for _,name in ipairs({"basalt_cobble", "slate_tale", "straw", "stone_brick", "ors_cobble", "gneiss_cobble", "slate_cobble"}) do
+	local nodename = "darkage:"..name
+	local tmp = minetest.registered_nodes[nodename]
+	if not tmp then
+		print("[darkage] "..nodename.." not yet defined")
+		return
+	end
+	local desc = tmp.description
+	stairs.register_stair_and_slab("darkage_"..name, nodename,
+		tmp.groups,
+		{"darkage_"..name..".png"},
+		desc.." Stair",
+		desc.." Slab",
+		tmp.sounds
+	)
+end
+--"desert_stone_cobble" "sandstone_cobble"