BisaCast support

[chrissxYT]

Checklist

• I'm reporting a new site support request
• I've verified that I'm running youtube-dl version 2020.07.28
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that none of provided URLs violate any copyrights
• I've searched the bugtracker for similar site support requests including closed ones

Example URLs

• Single video: http://www.bisacast.de/2012/08/bisacast-6-nuzlocke-und-andere-challenges/
• Single video: http://www.bisacast.de/wp-content/uploads/2012/08/BisaCast6-Nuzlocke-und-andere-Challenges.mp3
• Playlist: http://www.bisacast.de/podcasts/bisacast-lv3/

Description

BisaCast is a German podcast last released in 2016 that has nice lists and sites with direct download links, but no quick way to download all of them. I just realized that the generic extractor can extract links from RSS feeds, but that is not enough, because not every episode is in there.