adding sidepane and bottom control bar

assignments/a2/src/main/java/Main.java

@@ -18,6 +18,8 @@ public class Main
 		window.getContentPane().add(mainpanel);
 		mainpanel.add(view, BorderLayout.CENTER);
 		mainpanel.add(menubar, BorderLayout.PAGE_START);
+		mainpanel.add(sidepane, BorderLayout.LINE_START);
+		mainpanel.add(controls, BorderLayout.PAGE_END);
 		menubar.updateColour();
 		sidepane.updateColour();
 		controls.updateColour();