Add inventory.

archive/rpg/item/inventory.h

@@ -0,0 +1,13 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "dusk.h"
+
+typedef struct {
+  void *nothing;
+} inventory_t;