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/container/slot/SlotCraftingTerm.java

@@ -134,7 +134,7 @@ public class SlotCraftingTerm extends AppEngCraftingSlot
 			return;
 		}
 
-		final ItemStack rs = Platform.cloneItemStack( this.getStack() );
+		final ItemStack rs = this.getStack().copy();
 		if( rs.isEmpty() )
 		{
 			return;
@@ -202,7 +202,7 @@ public class SlotCraftingTerm extends AppEngCraftingSlot
 		// update crafting matrix...
 		ItemStack is = this.getStack();
 
-		if( !is.isEmpty() && Platform.itemComparisons().isEqualItem( request, is ) )
+		if( !is.isEmpty() && ItemStack.areItemsEqual( request, is ) )
 		{
 			final ItemStack[] set = new ItemStack[this.getPattern().getSlots()];
 			// Safeguard for empty slots in the inventory for now
@@ -309,7 +309,7 @@ public class SlotCraftingTerm extends AppEngCraftingSlot
 					final IAEItemStack fail = inv.injectItems( AEItemStack.create( set[x] ), Actionable.MODULATE, this.mySrc );
 					if( fail != null )
 					{
-						drops.add( fail.getItemStack() );
+						drops.add( fail.createItemStack() );
 					}
 				}
 			}