Method SectionStats

external/catch.hpp:5539–5539

                        double _durationInSeconds,
                        bool _missingAssertions );
        SectionStats( SectionStats const& )              = default;
        SectionStats( SectionStats && )                  = default;
        SectionStats& operator = ( SectionStats const& ) = default;
        SectionStats& operator = ( SectionStats && )     = default;