initial patch

src/api/java/com/enderio/core/common/interfaces/IOverlayRenderAware.java

@@ -0,0 +1,11 @@
+package com.enderio.core.common.interfaces;
+
+import net.minecraft.item.ItemStack;
+
+import javax.annotation.Nonnull;
+
+public interface IOverlayRenderAware {
+
+    public void renderItemOverlayIntoGUI(@Nonnull ItemStack stack, int xPosition, int yPosition);
+
+}