Experimental: Frame-by-frame video processing pipeline

[blueangel1313]

This PR introduces an experimental feature to animate source videos using a driving video using the LivePortrait model. The changes include:

1. Adjusted the configuration to accept video input.
2. Created a new pipeline that processes videos frame-by-frame.

Key changes:

• Modified ArgumentConfig to include video-related parameters.
• Created live_portrait_video_pipeline.py , which allows users to animate a source video using a driving video, applying the LivePortrait transformations to each frame.

This PR is currently experimental and may require further optimization and testing.

To use this:

1. Provide a source video path using the --source_video argument.
2. Provide a driving video path using the --driving_info argument.
3. Specify an output directory using the --output_dir argument.

[blueangel1313]

Update to come.