editortranslator labels are always appended to the name

[zipymonkey]

I am running into an issue where the editortranslator is being appended to the names instead of prepended.

Specifically, you can see this is an issue here: https://github.com/seboettg/citeproc-php/blob/develop/src/Rendering/Name/Names.php#L206

Using the $this->appendLabel() seems to resolve this issue. Something like:

$str = $this->appendLabel($data, 'editortranslator', $str);