Prepare GTE overlay

examples/PoolBox/application/src/Overlay/GTETest/gte_test.cpp

@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+namespace GTETest {
+    void main() {
+        printf("PLANSCHIPLANSCHIPLANSCHIPLANSCHI\n");
+    }
+}

examples/PoolBox/application/src/Overlay/GTETest/include/gte_test_assets.hpp

@@ -0,0 +1,6 @@
+#pragma once 
+#include <PSX/File/cd_file_types.hpp>
+
+namespace GTETest {
+    using namespace JabyEngine;
+}