[Coati] first commit

[Fazziekey]

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• I have created an issue for this PR for traceability
• The title follows the standard format: [doc/gemini/tensor/...]: A concise description
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🚨 Issue number

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e.g. fixed #1234, closed #1234, resolved #1234

📝 What does this PR do?

• Transfer Coati (Colossal AI talking intelligence)
• support 3-stage RLHF training
• release Coati model

Summarize your work here.
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💥 Checklist before requesting a review

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• My issue clearly describes the problem/feature/proposal, with diagrams/charts/table/code if possible
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• I have added thorough tests.
• I have added docstrings for all the functions/methods I implemented

⭐️ Do you enjoy contributing to Colossal-AI?

• 🌝 Yes, I do.
• 🌚 No, I don't.

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