Support multiple authors for extensions
Support specifying multiple authors in the extension info.xml.
We can't add multiple author/email tags as (the core extension browser) parses those as a string and will display "Array (Array)" if you specify more than one. So my proposal is that we add authors/emails tags that UI components parse as a string/array in which you can specify additional authors:
<maintainer>
<author>Mr Ben</author>
<email>ben@example.org</email>
<authors>Bob</authors>
<emails>bob@example.org</emails>
<authors>Bert</authors>
<emails>bert@example.org</emails>
</maintainer>
See https://github.com/mattwire/civicrm-core/tree/extension_multiple_authors for a PR that makes this work in the core extensions browser.