Relocate Source to proper directory.

src/main/java/appeng/items/contents/QuartzKnifeObj.java

@@ -0,0 +1,21 @@
+package appeng.items.contents;
+
+import net.minecraft.item.ItemStack;
+import appeng.api.implementations.guiobjects.IGuiItemObject;
+
+public class QuartzKnifeObj implements IGuiItemObject
+{
+
+	final ItemStack is;
+
+	public QuartzKnifeObj(ItemStack o) {
+		is = o;
+	}
+
+	@Override
+	public ItemStack getItemStack()
+	{
+		return is;
+	}
+
+}