create more battle constants

src/battle_util.c

@@ -15,7 +15,7 @@
 #include "text.h"
 #include "string_util.h"
 #include "battle_message.h"
-#include "battle_string_ids.h"
+#include "constants/battle_string_ids.h"
 #include "battle_ai_script_commands.h"
 #include "battle_controllers.h"
 #include "event_data.h"