[ie/wrestleuniverse] Avoid partial stream formats

[bashonly]

Some master m3u8s for PPV/livestreams actually provide variants for two separate streams, e.g. https://vod.asset.wrestle-universe.com/2e6gptHzDNQS47VDSvUPGQ/live-b.m3u8 has a live-a stream and a live-b stream:

#EXTM3U
#EXT-X-VERSION:3
#EXT-X-INDEPENDENT-SEGMENTS
#EXT-X-STREAM-INF:BANDWIDTH=23383278,AVERAGE-BANDWIDTH=20222400,CODECS="avc1.640029,mp4a.40.2",RESOLUTION=1920x1080,FRAME-RATE=29.970
live-b_1080p_2997fps.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=23383278,AVERAGE-BANDWIDTH=20222400,CODECS="avc1.640029,mp4a.40.2",RESOLUTION=1920x1080,FRAME-RATE=29.970
live-a_1080p_2997fps.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=10416034,AVERAGE-BANDWIDTH=9011200,CODECS="avc1.4d401f,mp4a.40.2",RESOLUTION=1280x720,FRAME-RATE=29.970
live-b_720p_2997fps.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=10416034,AVERAGE-BANDWIDTH=9011200,CODECS="avc1.4d401f,mp4a.40.2",RESOLUTION=1280x720,FRAME-RATE=29.970
live-a_720p_2997fps.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=5243216,AVERAGE-BANDWIDTH=4540800,CODECS="avc1.4d401f,mp4a.40.2",RESOLUTION=960x540,FRAME-RATE=29.970
live-b_540p_2997fps.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=5243216,AVERAGE-BANDWIDTH=4540800,CODECS="avc1.4d401f,mp4a.40.2",RESOLUTION=960x540,FRAME-RATE=29.970
live-a_540p_2997fps.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=2692008,AVERAGE-BANDWIDTH=2340800,CODECS="avc1.4d401f,mp4a.40.2",RESOLUTION=640x360,FRAME-RATE=29.970
live-b_360p_2997fps.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=2692008,AVERAGE-BANDWIDTH=2340800,CODECS="avc1.4d401f,mp4a.40.2",RESOLUTION=640x360,FRAME-RATE=29.970
live-a_360p_2997fps.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=1416404,AVERAGE-BANDWIDTH=1240800,CODECS="avc1.4d401f,mp4a.40.2",RESOLUTION=426x240,FRAME-RATE=29.970
live-b_240p_2997fps.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=1416404,AVERAGE-BANDWIDTH=1240800,CODECS="avc1.4d401f,mp4a.40.2",RESOLUTION=426x240,FRAME-RATE=29.970
live-a_240p_2997fps.m3u8

If we look at https://vod.asset.wrestle-universe.com/2e6gptHzDNQS47VDSvUPGQ/live-a_1080p_2997fps.m3u8, we can see it is only the first ~30 minutes of https://vod.asset.wrestle-universe.com/2e6gptHzDNQS47VDSvUPGQ/live-b_1080p_2997fps.m3u8.

This patch prefers the variant playlists that have the same basename as the master manifest to avoid such partial streams.

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