[Bleeding] Recipe API improvements and fixes. Addresses BUKKIT-738 and BUKKIT-624

Add a recipe iterator to make it possible to retrieve and remove recipes (BUKKIT-738), and updated the recipe classes to not clip the data to 127 (BUKKIT-624)

src/main/java/net/minecraft/server/CraftingRecipe.java

@@ -1,5 +1,7 @@
 package net.minecraft.server;
 
+import org.bukkit.inventory.Recipe; // CraftBukkit
+
 public interface CraftingRecipe {
 
     boolean a(InventoryCrafting inventorycrafting);
@@ -9,4 +11,6 @@ public interface CraftingRecipe {
     int a();
 
     ItemStack b();
+    
+    Recipe toBukkitRecipe(); // CraftBukkit
 }