Method width

unittests/catch.hpp:5407–5411

        explicit Column( std::string const& text ) { m_strings.push_back( text ); }

        auto width( size_t newWidth ) -> Column& {
            assert( newWidth > 0 );
            m_width = newWidth;
            return *this;
        }
        auto indent( size_t newIndent ) -> Column& {
            m_indent = newIndent;
            return *this;