Optimize Hoppers

- Lots of itemstack cloning removed. Only clone if the item is actually moved
- Return true when a plugin cancels inventory move item event instead of false, as false causes pulls to cycle through all items.
  However, pushes do not exhibit the same behavior, so this is not something plugins could of been relying on.
- Add option (Default on) to cooldown hoppers when they fail to move an item due to full inventory
- Skip subsequent InventoryMoveItemEvents if a plugin does not use the item after first event fire for an iteration

Spigot-Server-Patches/Prevent-Pathfinding-out-of-World-Border.patch

@@ -6,7 +6,7 @@ Subject: [PATCH] Prevent Pathfinding out of World Border
 This prevents Entities from trying to run outside of the World Border
 
 diff --git a/src/main/java/net/minecraft/server/NavigationAbstract.java b/src/main/java/net/minecraft/server/NavigationAbstract.java
-index 3ac6f84d..935b2e81 100644
+index 3ac6f84d3..935b2e81e 100644
 --- a/src/main/java/net/minecraft/server/NavigationAbstract.java
 +++ b/src/main/java/net/minecraft/server/NavigationAbstract.java
 @@ -0,0 +0,0 @@ public abstract class NavigationAbstract {
@@ -26,7 +26,7 @@ index 3ac6f84d..935b2e81 100644
              if (this.c != null && !this.c.b() && blockposition.equals(this.q)) {
                  return this.c;
 diff --git a/src/main/java/net/minecraft/server/WorldBorder.java b/src/main/java/net/minecraft/server/WorldBorder.java
-index 9038d52e..632eb1c9 100644
+index 9038d52eb..632eb1c9d 100644
 --- a/src/main/java/net/minecraft/server/WorldBorder.java
 +++ b/src/main/java/net/minecraft/server/WorldBorder.java
 @@ -0,0 +0,0 @@ public class WorldBorder {