mu3hook: Add initial Ongeki hook

mu3hook/config.c

@@ -0,0 +1,18 @@
+#include <stddef.h>
+
+#include "board/config.h"
+
+#include "mu3hook/config.h"
+
+#include "platform/config.h"
+
+void mu3_hook_config_load(
+        struct mu3_hook_config *cfg,
+        const wchar_t *filename)
+{
+    assert(cfg != NULL);
+    assert(filename != NULL);
+
+    alls_config_load(&cfg->alls, filename);
+    aime_config_load(&cfg->aime, filename);
+}