[FeatureRequest] Add streaming support to openAI compatible api.

[s-kostyaev]

For now api not fully compatible with openAI one, it lacks streaming support. I would like to use it with streaming support.This one https://github.com/ml-explore/mlx-examples/blob/main/llms/mlx_lm/SERVER.md supports it and has MIT license.

[armbues]

Yes, the server is not fully implemented yet - good suggestion!