[KDE e.V.] Allow getting list of active e.V. members via web request from other domains

The web page https://ev.kde.org/members/ lists (active) KDE e.V. members. This information is obtained by calling a PHP script that does an LDAP query. In principle there is an API endpoint for the same query in my.kde.org, but this is blocked by CORS settings.

There is a MR !22 (closed) , which works around this but it it is stalled, based on there being less hackish Django modules to achieve the same.