Closes #1726: Added Pressure P2P tunnel (PneumaticCraft)

src/api/java/appeng/api/config/TunnelType.java

@@ -34,5 +34,6 @@ public enum TunnelType
 	ITEM, // Item Tunnel
 	LIGHT, // Light Tunnel
 	BUNDLED_REDSTONE, // Bundled Redstone Tunnel
-	COMPUTER_MESSAGE // Computer Message Tunnel
+	COMPUTER_MESSAGE, // Computer Message Tunnel
+	PRESSURE // PneumaticCraft Tunnel
 }

src/api/java/appeng/api/definitions/IParts.java

@@ -86,6 +86,8 @@ public interface IParts
 
 	IItemDefinition p2PTunnelOpenComputers();
 
+	IItemDefinition p2PTunnelPneumaticCraft();
+
 	IItemDefinition cableAnchor();
 
 	IItemDefinition monitor();