OpenSora-CAI: support modelarts training

[HaoyangLee]

Adds # (feature)

• Support modelarts training of Opensora
• Add msrun launch script to common module mindone/utils/modelarts

Before submitting

• [x] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• [x] Did you read the contributor guideline?
• [x] 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
• [x] Did you build and run the code without any errors?
• [x] 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)
• [x] Did you write any new necessary tests?