Refactor mcl_stairs into multiple files

mods/ITEMS/mcl_stairs/crafting.lua

@@ -0,0 +1,53 @@
+minetest.register_craft({
+	output = 'mcl_core:sandstonecarved',
+	recipe = {
+		{'mcl_stairs:slab_sandstone'},
+		{'mcl_stairs:slab_sandstone'}
+	}
+})
+
+minetest.register_craft({
+	output = 'mcl_core:redsandstonecarved',
+	recipe = {
+		{'mcl_stairs:slab_redsandstone'},
+		{'mcl_stairs:slab_redsandstone'}
+	}
+})
+
+minetest.register_craft({
+	output = 'mcl_core:stonebrickcarved',
+	recipe = {
+		{'mcl_stairs:slab_stonebrick'},
+		{'mcl_stairs:slab_stonebrick'}
+	}
+})
+
+minetest.register_craft({
+	output = 'mcl_end:purpur_pillar',
+	recipe = {
+		{'mcl_stairs:slab_purpur_block'},
+		{'mcl_stairs:slab_purpur_block'}
+	}
+})
+
+minetest.register_craft({
+	output = 'mcl_nether:quartz_chiseled 2',
+	recipe = {
+		{'mcl_stairs:slab_quartzblock'},
+		{'mcl_stairs:slab_quartzblock'},
+	}
+})
+
+-- Fuel
+minetest.register_craft({
+	type = "fuel",
+	recipe = "group:wood_stairs",
+	burntime = 15,
+})
+minetest.register_craft({
+	type = "fuel",
+	recipe = "group:wood_slab",
+	-- Original burn time: 7.5 (PC edition)
+	burntime = 8,
+})
+