Minor - ECS use in save - V12.6.0

enginecustom/src/inc/system/scene_manager.h

@@ -3,6 +3,8 @@
 #include <string>
 #include <vector>
 
+#include "ecs/entity.h"
+
 class d_3d_class;
 class object;
 class application_class;
@@ -26,6 +28,8 @@ public:
 
 private:
 
+    std::vector<std::shared_ptr<ecs::Entity>> entity_;
+    
     application_class* app_;
     std::string scene_path_;
     std::vector<object*> object_vec_;