Log Message:
youtube-dl: Update to 20201118

pkgsrc changes:
 - Remove patch-youtube__dl_extractor_bandcamp.py, fixed differently upstream
 - Update patch-youtube__dl_extractor_rai.py to current rai extractor
 - Add a reference to upstream pull request in patch-youtube__dl_extractor_la7.py

Changes:
2020.11.18
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Extractors
* [spiegel] Fix extraction (#24206, #24767)
* [youtube] Improve extraction
    + Add support for --no-playlist (#27009)
    * Improve playlist and mix extraction (#26390, #26509, #26534, #27011)
    + Extract playlist uploader data
* [youtube:tab] Fix view count extraction (#27051)
* [malltv] Fix extraction (#27035)
+ [bandcamp] Extract playlist description (#22684)
* [urplay] Fix extraction (#26828)
* [youtube:tab] Fix playlist title extraction (#27015)
* [youtube] Fix chapters extraction (#26005)

2020.11.17
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Core
* [utils] Skip ! prefixed code in js_to_json

Extractors
* [youtube:tab] Fix extraction with cookies provided (#27005)
* [lrt] Fix extraction with empty tags (#20264)
+ [ndr:embed:base] Extract subtitles (#25447, #26106)
+ [servus] Add support for pm-wissen.com (#25869)
* [servus] Fix extraction (#26872, #26967, #26983, #27000)
* [xtube] Fix extraction (#26996)
* [lrt] Fix extraction
+ [lbry] Add support for lbry.tv
+ [condenast] Extract subtitles
* [condenast] Fix extraction
* [bandcamp] Fix extraction (#26681, #26684)
* [rai] Fix RaiPlay extraction (#26064, #26096)
* [vlive] Fix extraction
* [usanetwork] Fix extraction
* [nbc] Fix NBCNews/Today/MSNBC extraction
* [cnbc] Fix extraction