Method PerColumnWidth

tools/shell/shell_render_table_metadata.cpp:105–112

	vector<idx_t> tables;

	idx_t PerColumnWidth() const {
		idx_t width = 4;
		for (auto &component_width : max_component_widths) {
			width += component_width;
		}
		width += max_component_widths.size() - 1;
		return width;
	}
	void RenderLine(ShellHighlight &highlight, const vector<ShellTableRenderInfo> &tables, idx_t line_idx,
	                bool last_line);
};