chore: adds warning information

frontends/libretro/res/boytacean_libretro.info

@@ -24,4 +24,5 @@ memory_descriptors = "false"
 libretro_saves = "true"
 core_options = "true"
 
+# General Description
 description = "A Game Boy emulator that is written in Rust."

frontends/libretro/src/lib.rs

@@ -413,6 +413,9 @@ pub unsafe extern "C" fn retro_load_game(game: *const RetroGameInfo) -> bool {
         RETRO_ENVIRONMENT_GET_GAME_INFO_EXT,
         addr_of!(GAME_INFO_EXT) as *const _ as *const c_void,
     );
+    if !ext_result {
+        warnln!("Failed to get extended game info");
+    }
     infoln!(
         "Loading ROM file in Boytacean from '{}' ({} bytes)...",
         String::from(CStr::from_ptr((*game).path).to_str().unwrap()),