added deezl's extra_stairsplus

makes caverealms nodes work with table saw again

extra_stairsplus/depends.txt

@@ -0,0 +1,3 @@
+default
+moreblocks
+caverealms

extra_stairsplus/init.lua

@@ -0,0 +1,46 @@
+local cave_nodes = { -- Default stairs/slabs/panels/microblocks:
+        "caverealms:glow_crystal",
+        "caverealms:glow_emerald",
+        "caverealms:glow_mese",
+        "caverealms:glow_ore",
+        "caverealms:glow_emerald_ore",
+        "caverealms:glow_ruby",
+        "caverealms:glow_amethyst",
+        "caverealms:glow_ruby_ore",
+        "caverealms:salt_crystal",
+        "caverealms:stone_with_salt",
+        "caverealms:glow_obsidian"
+        
+}
+ 
+    
+    for _, name in pairs(cave_nodes) do
+	local nodename = "caverealms:"..name
+	local a,b = string.find(name, ":")
+	if b then
+		nodename = name
+		name = string.sub(name, b+1)
+	end
+	local ndef = minetest.registered_nodes[nodename]
+	if ndef then
+		local drop
+		if type(ndef.drop) == "string" then
+			drop = ndef.drop:sub((b or 8)+1)
+		end
+
+		local tiles = ndef.tiles
+		if #ndef.tiles > 1 and ndef.drawtype:find("glass") then
+			tiles = { ndef.tiles[1] }
+		end
+
+		stairsplus:register_all("caverealms", name, nodename, {
+			description = ndef.description,
+			drop = drop,
+			groups = ndef.groups,
+			sounds = ndef.sounds,
+			tiles = tiles,
+			sunlight_propagates = true,
+			light_source = ndef.light_source
+		})
+	end
+end