[animeplustv] Add new extractor

[eadaradhiraj]

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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

This pull request is to add a new extractor called animeplustv. This extractor will download a single video if the url states that is an episode or a couple of videos in the case of a movie. (Movies are divided into three parts)

[dstftw]

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