[lequipe] Add new extractor

[LucBerge]

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What is the purpose of your pull request?

• Bug fix
• Improvement
• New extractor
• New feature

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Description of your pull request and other information

• Closes Site Support Request: lequipe.fr #21328 by adding a new extractor.

[dstftw]

Just add pattern to dailymotion extractor.

[LucBerge]

Just add pattern to dailymotion extractor.

What does it mean ? I already have 'ie_key': 'Dailymotion' in the dictionary.

[LucBerge]

Ok I got it now... Easier ! Thank you