Add support for DLF / Deutchlandfunk

[htgoebel]

Checklist

• I'm reporting a site feature request
• I've verified that I'm running youtube-dl version 2019.08.13
• I've searched the bugtracker for similar site feature requests including closed ones

Description

Please add Support for Deutschlandfunk (DLF).

Example URL: https://www.deutschlandfunkkultur.de/demokratie-in-europa-antifaschismus-gehoert-nicht-in-die.1005.de.html?dram:article_id=443100 (audio should be available until 2038 ;-)

CSS path to relevant part (link to MP3): html body div#wrapper section#pageContent.drk-article div.text a.drk-articleplay.player-embed.justPlay. The MP3-URL is contained in the data-audio-src attribute.

<div class="text">
<a class="drk-articleplay player-embed justPlay"
data-audio-src="https://ondemand-mp3.dradio.de/file/dradio/2019/03/11/antifaschismus_gehoert_nicht_in_die_linke_ecke_drk_20190311_0720_81d20961.mp3"
data-audio-title="Antifaschismus gehört nicht in die linke Ecke"
data-audio-broadcast="Politisches Feuilleton"
data-audio-station-code="DRK"
data-audio-duration="248" data-audio-size="4011540" data-audio-diraid="81d20961" 
data-audio-delivery-mode="download"
data-audio-title-suffix="(Hören bis 19. Januar 2038 - 04:14 Uhr)">
Beitrag hören
</a>

For the cas youtube-dl shall also support "playlists": Just behind this MP3-link there is a script containing "podlove" information:

<script context="inline" class="podlove-subscribe-button" src="https://www.deutschlandfunkkultur.de/themes/dradio/script/podlove/javascripts/app.js" data-language="de" data-size="small" data-hide="true" data-json-data="podcastData_podlove" data-buttonid="podlove"></script> <script type="text/javascript"> window.podcastData_podlove = { "id": "podlove", "title": "Politisches Feuilleton", "subtitle": "", "cover": "https://www.deutschlandfunkkultur.de/media/files/f/fc597188e5452ede2a9d19f8e2cbc753v1.jpg", "feeds": [ { "type": "audio", "format": "mp3", "url": "https://www.deutschlandfunkkultur.de/podcast-politisches-feuilleton.1006.de.podcast.xml", "variant": "high" } ] }; </script>