* Compatible with Azure Openai's 2023-07-01-preview version API interface about the error information returned by the intercepted interface
* Compatible with the 2023-07-01-preview API interface of Azure Openai, when content interception is triggered, the error message will contain innererror.InnerError struct is only valid for Azure OpenAI Service.
* maintain underlying error structs to allow for type conversion and
defensive error checking
* allow Error.Is for Azure responses
* update readme, add tests to ensure type conversion
* fix whitespacing
* read me
* add import to readme example