Databricks OpenAI Integration

The `databricks-openai` package provides seamless integration of Databricks AI features into OpenAI applications. It extends the standard OpenAI client with Databricks authentication and offers specialized tools like `VectorSearchRetrieverTool` for interacting with Databricks' AI capabilities. Currently at version 0.14.0, it sees active development, with frequent updates to support new OpenAI models and Databricks features.