Extracts item comparison from Platform into their own helper. (#2555)

* Extracts item comparison from Platform into their own helper.

Renamed methods to be more more fitting for the actual comparison.
Added documentation about each methods behaviour.

src/main/java/appeng/parts/CableBusContainer.java

@@ -1066,7 +1066,7 @@ public class CableBusContainer extends CableBusStorage implements AEMultiTile, I
 
 				final ItemStack current = p == null ? null : p.getItemStack( PartItemStack.WORLD );
 
-				if( Platform.isSameItemType( iss, current ) )
+				if( Platform.itemComparisons().isEqualItemType( iss, current ) )
 				{
 					p.readFromNBT( extra );
 				}

src/main/java/appeng/parts/automation/StackUpgradeInventory.java

@@ -43,7 +43,7 @@ public class StackUpgradeInventory extends UpgradeInventory
 
 		for( final ItemStack is : upgrades.getSupported().keySet() )
 		{
-			if( Platform.isSameItem( this.stack, is ) )
+			if( Platform.itemComparisons().isEqualItem( this.stack, is ) )
 			{
 				max = upgrades.getSupported().get( is );
 				break;

src/main/java/appeng/parts/misc/ItemHandlerAdapter.java

@@ -111,7 +111,7 @@ class ItemHandlerAdapter implements IMEInventory<IAEItemStack>, IBaseMonitor<IAE
 		{
 			ItemStack sub = itemHandler.getStackInSlot( i );
 
-			if( !Platform.isSameItemPrecise( sub, req ) )
+			if( !Platform.itemComparisons().isSameItem( sub, req ) )
 			{
 				continue;
 			}
@@ -275,7 +275,7 @@ class ItemHandlerAdapter implements IMEInventory<IAEItemStack>, IBaseMonitor<IAE
 			return false;
 		}
 
-		return a == null || b == null || !Platform.isSameItemPrecise( a, b );
+		return a == null || b == null || !Platform.itemComparisons().isSameItem( a, b );
 	}
 
 	private void postDifference( Iterable<IAEItemStack> a )

src/main/java/appeng/parts/p2p/PartP2PTunnel.java

@@ -270,7 +270,7 @@ public abstract class PartP2PTunnel<T extends PartP2PTunnel> extends PartBasicSt
 					break;
 			}
 
-			if( newType != null && !Platform.isSameItem( newType, this.getItemStack() ) )
+			if( newType != null && !Platform.itemComparisons().isEqualItem( newType, this.getItemStack() ) )
 			{
 				final boolean oldOutput = this.isOutput();
 				final long myFreq = this.getFrequency();