Support azure openai services for chat completion model

[wsxiaoys]

Please describe the feature you want

Context: #3667

Example: https://github.com/64bit/async-openai/blob/bd7a87e335630d5d2f3e6cef30d15633048937b3/examples/azure-openai-service/src/main.rs#L4

Location: https://github.com/TabbyML/tabby/blob/main/crates/http-api-bindings/src/chat/mod.rs

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Please reply with a 👍 if you want this feature.

[Sma1lboy]

I can take this if nobody is doing it right now