qDebug() support for std:: types

Qt types have good debugging supports in the face of both debugger pretty printers and qDebug overloads.

If one switches to std:: types or an external code uses std:: types this is lost.

Absolute minimums should be: std::string, std::wstring, wchar_t, std::vector, std::array and std::pair. If not or full debugger support at least for qDebug overloads, which are more or less trivial.