Rainforest: Add emergent jungle tree and sapling

Height 20 to 32 nodes.
Dependent on chunksize >= 5.
Base limited to maximum altitude y = 32.
Craft sapling from 9 jungle saplings.

mods/default/crafting.lua

@@ -763,14 +763,26 @@ minetest.register_craft({
 	}
 })
 
+minetest.register_craft({
+	output = "default:emergent_jungle_sapling",
+	recipe = {
+		{"default:junglesapling", "default:junglesapling", "default:junglesapling"},
+		{"default:junglesapling", "default:junglesapling", "default:junglesapling"},
+		{"default:junglesapling", "default:junglesapling", "default:junglesapling"},
+	}
+})
+
+
 --
 -- Crafting (tool repair)
 --
+
 minetest.register_craft({
 	type = "toolrepair",
 	additional_wear = -0.02,
 })
 
+
 --
 -- Cooking recipes
 --
@@ -849,6 +861,7 @@ minetest.register_craft({
 	cooktime = 5,
 })
 
+
 --
 -- Fuels
 --
@@ -964,6 +977,12 @@ minetest.register_craft({
 	burntime = 6,
 })
 
+minetest.register_craft({
+	type = "fuel",
+	recipe = "default:emergent_jungle_sapling",
+	burntime = 7,
+})
+
 
 minetest.register_craft({
 	type = "fuel",