Request wan2.1-magref workflow template support

### Feature Idea

Given a single facial reference, MAGREF generates identity-consistent videos across diverse scenes and actions. Our method ensures high-fidelity facial appearance preservation while animating the subject in alignment with the prompt, enabling vivid storytelling and expressive motion grounded in a single identity.

https://magref-video.github.io/magref.github.io/

https://huggingface.co/Kijai/WanVideo_comfy/blob/main/Wan2_1-Wan-I2V-MAGREF-14B_fp8_e4m3fn.safetensors

### Existing Solutions

Request wan2.1-magref workflow template support

### Other

_No response_