Support loading Assets for Overlays

examples/PoolBox/application/src/Overlay/Overlays.hpp

@@ -1,9 +1,13 @@
 #pragma once
+#include <PSX/File/cd_file_types.hpp>
 
 namespace ControllerTest {
     void main();
 }
 
 namespace GPUTest {
+    extern const volatile JabyEngine::AutoLBAEntry lba[];
+    extern                JabyEngine::CDFile       Assets[2];
+
     void main();
 }