This commit introduces several new performance-oriented custom nodes and utilities:
- Added LTXV Multi Concat and LTXV Multi Concat (beta) for faster frame injection using latent inpainting logic.
- Refactored LTXV index resolution logic into ltxv_utils.py.
- Updated ImageListSampler to anchor edge frames properly and support output index normalization scaling via target_frames.
- Added metadata-based prompt extraction image loaders (LoadImageAndExtractPrompt, FolderImageAndExtractPrompt, and FolderImageMetadataByName).
- Included animation tracking and camera switcher nodes.
Marco