feat: hunyuan t2v finetune

[DukeofCambridge]

Updates include:

1. add hunyuan lora training code (shscripts/train_hunyuan_lora.sh)
2. add hunyuan diffusers ver inference code which is also for lora loading (shscripts/train_hunyuan_lora.sh)
3. rename the old hunyuan inference file to shscripts/inference_hunyuan_src.sh (which uses the hunyuan source codes)
4. add the related documents

Changed files include:

1. shscripts/inference_hunyuan_diffusers.sh

2. shscripts/train_hunyuan_lora.sh

3. shscripts/inference_hunyuan_src.sh

4. scripts/inference_hunyuan_diffusers.py

5. scripts/train_hunyuan_lora.py

6. scripts/inference_hunyuan_src.py

7. configs/006_hunyuanVideo/hunyuan_t2v_lora.yaml

8. src/finetrainers/*

9. requirements-hunyuan-finetune.txt (a separate environment)