Improve exception safety with smart pointers

Would you like to [wrap any pointer data members](https://github.com/papyrussolution/OpenPapyrus/blob/bbd0b6e20cd81eec7f52cb91d7780a2908e4d0be/Src/SLib/TBDDLG.CPP#L10 "Update candidate: TabbedDialog class") with the class template “[std::unique_ptr](https://en.wikipedia.org/wiki/Smart_pointer#unique_ptr "Description for the usage of smart pointers")”?