OpenAI: Add o1/o1-mini to chat model enum

[PARK-afk]

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[ThomasVitale]

These models are a bit different compared to the rest. For example, they don't support function calling nor system messages. I would suggest considering how to convey this information to warn users that by switching model value they might get a broken application. It might be worth considering whether adding them to this enum is necessary. Even if they're not added to the enum, it's always possible to use these new models, either via configuration properties or via the ChatModel/ChatClient APIs.

[markpollack]

good point. we need to think about it. in anycase, i merged the enums in the interest of having folks explore from a common reference point for api discovery. that said, it will be interesting to see how much openai break their contracts. eg. i don't think temperature or some other options apply for this model. the landscape just gets more complex...

[markpollack]

merged in 40eaa99

will create an issue to discuss how 'common options' are not getting i'll defined.

[dafriz]

Note that the commit that got merged has the wrong values - 40eaa99 . It was his follow up commit that had the names that match OpenAI docs - 0bd27e4

See https://platform.openai.com/docs/models/o1 - they start with o1, not gpt.

[markpollack]

ah, I got confused. I haven't yet played with the model myself. Thanks for that.

[markpollack]

I've updated the enums to be

		/**
		 * Points to the most recent snapshot of the o1 model:o1-preview-2024-09-12
		 */
		O1_PREVIEW("o1-preview"),
		/**
		 * Latest o1 model snapshot
		 */
		O1_PREVIEW_2024_09_12("o1-preview-2024-09-12"),
		/**
		 * Points to the most recent o1-mini snapshot:o1-mini-2024-09-12
		 */
		O1_MINI("o1-mini"),
		/**
		 * Latest o1-mini model snapshot
		 */
		O1_MINI_2024_09_12("o1-mini-2024-09-12")

[markpollack]

closing this PR and created #1378 for deeper analysis of rationalizing chatoptions, in particular due to how different the o1 model is regarding options and also functionality (e.g. no system messages)