Hunyuan video: inference and train

[wtomin]

What does this PR do?

HunyuanVideo:

• support hunyuan video inference with text embeding;
• support hunyuan video text encoder inference and text embedding cache;
• support hunyuan video t2v training with ZeRO3 and data parallelism;

Fixes # (issue)

Adds # (feature)

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• Did you read the contributor guideline?
• Did you make sure to update the documentation with your changes? E.g. record bug fixes or new features in What's New. Here are the
  documentation guidelines
• Did you build and run the code without any errors?
• Did you report the running environment (NPU type/MS version) and performance in the doc? (better record it for data loading, model inference, or training tasks)
• Did you write any new necessary tests?

Who can review?

Anyone in the community is free to review the PR once the tests have passed. Feel free to tag
members/contributors who may be interested in your PR.

@xxx

[SamitHuang]

suggestion for better code style and clarity

1. move executable scripts (run_xx.py, eval/xx.py) from src folder to the root folder or script folder
2. allow parsing hyper-parameters from yaml in training