add shared test

bin/layers/test_panel_2/test_panel_2.hpp

@@ -14,6 +14,8 @@ namespace sandbox
     ImVec2 m_pos = ImVec2{ 400.f, 400.f };
 
     local_panel m_local_panel;
+
+    std::vector<std::shared_ptr<local_panel>> m_local_panel_hub;
   };
 }