Game metadata extractor and some fixes

- App not closing on back pressed (AlberInputListener.java)
- Extract SMDH from rom.
- Extract metadata from SMDH

include/jni_driver.hpp

@@ -0,0 +1,7 @@
+#include <vector>
+#include "helpers.hpp"
+
+class Pandroid {
+public:
+    static void onSmdhLoaded(const std::vector<u8> &smdh);
+};