[Feature Request]: Ability to set built-in styles for a cell (XLSX)

[serverdevil]

This is:

- [ ] a bug report
- [x] a feature request
- [x] **not** a usage question (ask them on https://stackoverflow.com/questions/tagged/phpspreadsheet or https://gitter.im/PHPOffice/PhpSpreadsheet)

A feature request to support setting built-in styles on a cell when writing to XLSX. We are setting 0 a.k.a Normal for all. Would be good to have ability to set from the list of built-in types e.g. Hyperlink. setHyperlink is useful to set the cell's hyperlink but the styling does not reflect it.

Code reference (\PhpSpreadsheet\Reader\Xlsx\Styles.php).

//    Cell Styles
       if ($this->styleXml->cellStyles) {
           foreach ($this->styleXml->cellStyles->cellStyle as $cellStyle) {
               if ((int) ($cellStyle['builtinId']) == 0) {
                   if (isset($this->cellStyles[(int) ($cellStyle['xfId'])])) {
                       // Set default style
                       $style = new Style();
                       $this->readStyle($style, $this->cellStyles[(int) ($cellStyle['xfId'])]);
                        // normal style, currently not using it for anything
                   }
               }
           }
       }

Essentially, one of these.

Thoughts?

[stale[bot]]

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