project: Add a bit of backward compatibility to the reworked menus

runelite-client/src/test/java/net/runelite/client/menus/TestMenuEntry.java

@@ -163,4 +163,46 @@ public class TestMenuEntry implements MenuEntry
 	{
 		return this;
 	}
+
+	@Override
+	public int getOpcode()
+	{
+		return this.type;
+	}
+
+	@Override
+	public void setOpcode(int opcode)
+	{
+		this.type = opcode;
+	}
+
+	@Override
+	public int getActionParam0()
+	{
+		return this.param0;
+	}
+
+	@Override
+	public void setActionParam0(int param0)
+	{
+		this.param0 = param0;
+	}
+
+	@Override
+	public int getActionParam1()
+	{
+		return this.param1;
+	}
+
+	@Override
+	public void setActionParam1(int param1)
+	{
+		this.param1 = param1;
+	}
+
+	@Override
+	public MenuAction getMenuAction()
+	{
+		return MenuAction.of(this.type);
+	}
 }