1.6.0

1.6.0

• Add a new command Request-Embeddings.
• [IMPORTANT CHANGE]
  Change the environment variable name of the API auth key from OPENAI_TOKEN to OPENAI_API_KEY. And also change the parameter name from -Token to -ApiKey.
  This is because the word "Token" is often confused with a term used in the field of machine learning, and the official OpenAI reference uses this name.
  For backward compatibility, OPENAI_TOKEN and -Token will continue to work, but may be deprecated entirely in the future.