Custom video data support #1722 & #1721

[Bepitic]

📝 Description

• Provide a clear summary of the changes and the issue that has been addressed.
• Add support to use custom data to create datamodules of video-based data.
• Support for masks as .npy / .pt / or an image type.
• Support for train/test videos as .avi/.mp4 or as a collection of images in a folder.
• 🛠️ Fixes Custom video data support #1722 & Custom video data support #1721

✨ Changes

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• 🐞 Bug fix (non-breaking change which fixes an issue)
• 🔨 Refactor (non-breaking change which refactors the code base)
• 🚀 New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• 📚 Documentation update
• 🔒 Security update

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• 📚 I have made the necessary updates to the documentation (if applicable).
• 🧪 I have written tests that support my changes and prove that my fix is effective or my feature works (if applicable).

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[Bepitic]

Hello good day, I will start making the Documentation as another PR.

[Bepitic]

Has anomalib support the "test_split_mode.SYNTHETIC" feature for Video datasets?
To add it in the docs or not.
And should I make the arguments, even more 1:1 with the folder class?
@samet-akcay @ashwinvaidya17 @djdameln

[Bepitic]

And I would like to add a micro toy dataset ( 6mb ) that combines the other 3 datasets but in its minimum configuration.