tests: don't run the test if any of the extractors listed in the 'add_ie' field is marked as not working
[brightcove] Add the extraction of the url from generic
[brightcove] Change the 'videoId' or 'videoID' field to '@videoPlayer' (fixes #1697)

It seems to be needed when using the htmlFederated page
Add an extractor for space.com (fixes #1718)

It uses Brightcove, but requires some special process for getting a url with the playerKey field in some videos
[brightcove] Extract all the available formats