Add V2V (Video-to-Video), V2I (Video-to-Image), and video processing features

- Add video frame extraction (extract_video_frames, extract_keyframes)
- Add video info retrieval (get_video_info)
- Add frames to video conversion (frames_to_video)
- Add video upscaling with AI support (upscale_video)
- Add video-to-video style transfer (video_to_video_style_transfer)
- Add video-to-image extraction (video_to_image)
- Add video collage creation (create_video_collage)
- Add video filters (apply_video_filter - grayscale, sepia, blur, etc.)
- Add video concatenation (concat_videos)
- Add image upscaling (upscale_image)

Features:
- Extract frames at specific FPS or timestamps
- AI upscaling with ESRGAN/SwinIR support
- Scene detection for keyframe extraction
- Multiple video filters and effects
- Video concatenation with re-encoding or stream copy