OPEN-5555: Added methods for sending stream data

[Parthib]

Summary

• Introduces the stream_data Python client method, which hits the /data-stream endpoint.
• The data passed to the strea_data method should be a dict or a list of dicts (records).
• The OpenAI LLM monitor is now using the stream_data method (instead of publish_batch_data)
• Introduces a verbose parameter to the OpenlayerClient to avoid spamming the user with "Stream published!" messages.

Testing

This is the client I used for testing data streaming.

[gustavocidornelas]

Other than the minor naming comments, it looks good. However, I noticed that the send_stream_data method is basically identical to the publish_batch_data, other than the final upload part (i.e., endpoint, request body, and the need for a file upload). With DRY in mind, do you think there's another way to do this? Maybe having a single method publish_data that takes in an arg that flags if it's a batch or stream?