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/Add-ProjectileCollideEvent.patch

@@ -5,7 +5,7 @@ Subject: [PATCH] Add ProjectileCollideEvent
 
 
 diff --git a/src/main/java/net/minecraft/server/EntityArrow.java b/src/main/java/net/minecraft/server/EntityArrow.java
-index f55eb654..1338f37f 100644
+index f55eb654b..1338f37f3 100644
 --- a/src/main/java/net/minecraft/server/EntityArrow.java
 +++ b/src/main/java/net/minecraft/server/EntityArrow.java
 @@ -0,0 +0,0 @@ public abstract class EntityArrow extends Entity implements IProjectile {
@@ -25,7 +25,7 @@ index f55eb654..1338f37f 100644
                  this.a(movingobjectposition);
              }
 diff --git a/src/main/java/net/minecraft/server/EntityFireball.java b/src/main/java/net/minecraft/server/EntityFireball.java
-index 365e070f..657b3b5a 100644
+index 365e070f8..657b3b5ac 100644
 --- a/src/main/java/net/minecraft/server/EntityFireball.java
 +++ b/src/main/java/net/minecraft/server/EntityFireball.java
 @@ -0,0 +0,0 @@ public abstract class EntityFireball extends Entity {
@@ -45,7 +45,7 @@ index 365e070f..657b3b5a 100644
                  this.a(movingobjectposition);
  
 diff --git a/src/main/java/net/minecraft/server/EntityFishingHook.java b/src/main/java/net/minecraft/server/EntityFishingHook.java
-index 7f011aef..6ac89d1e 100644
+index 7f011aef8..6ac89d1e3 100644
 --- a/src/main/java/net/minecraft/server/EntityFishingHook.java
 +++ b/src/main/java/net/minecraft/server/EntityFishingHook.java
 @@ -0,0 +0,0 @@ public class EntityFishingHook extends Entity {
@@ -66,7 +66,7 @@ index 7f011aef..6ac89d1e 100644
              vec3d1 = new Vec3D(movingobjectposition.pos.x, movingobjectposition.pos.y, movingobjectposition.pos.z);
          }
 diff --git a/src/main/java/net/minecraft/server/EntityProjectile.java b/src/main/java/net/minecraft/server/EntityProjectile.java
-index cfcaf383..01c7fcc8 100644
+index cfcaf3832..01c7fcc8b 100644
 --- a/src/main/java/net/minecraft/server/EntityProjectile.java
 +++ b/src/main/java/net/minecraft/server/EntityProjectile.java
 @@ -0,0 +0,0 @@ public abstract class EntityProjectile extends Entity implements IProjectile {
@@ -86,7 +86,7 @@ index cfcaf383..01c7fcc8 100644
              if (movingobjectposition.type == MovingObjectPosition.EnumMovingObjectType.BLOCK && this.world.getType(movingobjectposition.a()).getBlock() == Blocks.PORTAL) {
                  this.e(movingobjectposition.a());
 diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
-index 87b4e918..06a277b3 100644
+index 87b4e9189..06a277b3b 100644
 --- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
 +++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
 @@ -0,0 +0,0 @@ public class CraftEventFactory {