Rework AEItemStack (#3091)

* Use itemstack as itemdef
* HIGH_TAG/LOW_TAG should be compared both directions
* Remove getTagCompound
* Make Itemlist implementation independent
* Cache item id for performance reasons
* Add preconditions to saveguard against external meddling
* Chache itemDamage
* Remove IAEStackSearchKey for now, rename getDisplayStack

src/main/java/appeng/tile/storage/TileChest.java

@@ -620,7 +620,7 @@ public class TileChest extends AENetworkPowerTile implements IMEChest, ITerminal
 				}
 				else
 				{
-					this.inputInventory.setStackInSlot( 0, returns.getItemStack() );
+					this.inputInventory.setStackInSlot( 0, returns.createItemStack() );
 				}
 			}
 		}