support for Azure OpenAI api

[georgehu0815]

need support for Azure OpenAI API

config_list = autogen.config_list_from_dotenv( dotenv_file_path='.env', model_api_key_map={ "gpt-4": "OPENAI_API_KEY", "gpt-3.5-turbo": { "api_key_env_var": "ANOTHER_API_KEY", "api_type": "aoai", "api_version": "v2", "base_url": "https://api.someotherapi.com" } }, filter_dict={ "model": { "gpt-4", "gpt-3.5-turbo", } } )

config_list

Reference: https://github.com/microsoft/autogen/blob/main/notebook/oai_openai_utils.ipynb

[Timothyxxx]

Agree, we are going to add that later.

[ZuoVJ]

needed +1

[geniuszxd]

needed +1

[koalazf99]

solved in #117