Apply the Ensure inv drag is in bounds patch properly

Closes GH-174

Spigot-Server-Patches/Ensure-inv-drag-is-in-bounds.patch

@@ -9,12 +9,12 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/net/minecraft/server/Container.java
 +++ b/src/main/java/net/minecraft/server/Container.java
 @@ -0,0 +0,0 @@ public abstract class Container {
-     }
+                     this.d();
+                 }
+             } else if (this.g == 1) {
+-                Slot slot = (Slot) this.c.get(i);
++                Slot slot = i < this.c.size() ? this.c.get(i) : null; // Paper - Ensure drag in bounds
  
-     public ItemStack b(EntityHuman entityhuman, int i) {
--        Slot slot = (Slot) this.c.get(i);
-+        Slot slot = i < this.c.size() ? this.c.get(i) : null; // Paper - Ensure drag in bounds
- 
-         return slot != null ? slot.getItem() : null;
-     }
+                 if (slot != null && a(slot, playerinventory.getCarried(), true) && slot.isAllowed(playerinventory.getCarried()) && playerinventory.getCarried().count > this.h.size() && this.b(slot)) {
+                     this.h.add(slot);
 --