Ykdl

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- enable pep517
- change API name from "vid" to "mid", step 1
- add index item to MediaInfo for playlist
- add util.lazy
- fix compatibility with m3u8 3.5.0 (621) Joeky
- fix default filename timestamp (622) a67878813
- add new extractor: acfun.live
- update GeneralSimple, Bilibili, Douban, DouYin, iQIYI, iXiGua, Huya, Weibo
- move extractor from "le.le" to "le"
- remove Baidu, iXiGua.live

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- fix compatibility bug on Python 3.9 and below (604)

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- add support HTTP cache
- add support interactive mode
- add `--show-all` argument
- improve handling of media title and filename
- bilibili.live API has been changed (600 fraic)
- support new sites: iXiGua
- update GeneralSimple, Bilibili, DouYin, YinYueTai

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- :warning: <break> update setup interrelated deefef9 10303eb 573
- :warning: <break> change matchall arguments to same as match1 c5229b6
- add new extractor: generalsimple, singlemultimedia e793453
- resolve SSL issues in old OS and package m3u8 1ccfa6b
- fixed dull Ctrl+C fec3a16
- support new sites: Funshion, Heibai 278 552 thx airdge
- update Weibo
- remove Xiami

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- support new sites: Douyin
- update Huya, Youku, MGTV

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- add subtitle support 544
- refactor Weibo
- improved utils html and m3u8
- update Bilibili, Douyu, iQIYI, MGTV, NetEase, PPTV, QQ