more work on asset registry and importing process

src/ModelManager.h

@@ -9,13 +9,14 @@
 #include <string_view>
 
 #include "Model.h"
+#include "uuid.h"
 
 class ModelManager
 {
 public:
-    static std::unordered_map<std::string, std::shared_ptr<Model>> models;
+    static std::unordered_map<uuids::uuid, std::unique_ptr<Model>> models;
 
-    static std::shared_ptr<Model> load_from_file(std::string_view _path, bool zUp = false);
+    static std::unique_ptr<Model> load_from_file(std::string_view _path, bool zUp = false);
 };