[Version] Bump 0.2.0

[Harold-lkk]

• Stream Output: Provides the stream_chat interface for streaming output, allowing cool streaming demos right at your local setup.

• Interfacing is unified, with a comprehensive design upgrade for enhanced extensibility, including:

  • Model: Whether it's the OpenAI API, Transformers, or LMDeploy inference acceleration framework, you can seamlessly switch between models.
  • Action: Simple inheritance and decoration allow you to create your own personal toolkit, adaptable to both InternLM and GPT.
  • Agent: Consistent with the Model's input interface, the transformation from model to intelligent agent only takes one step, facilitating the exploration and implementation of various agents.

• Documentation has been thoroughly upgraded with full API documentation coverage.