Added support for Azure bot

[PycKamil]

What: Added langchain package that is used in AzureBot for communicating with Azure API. Based on provided configuration AzureBot will be used as Bot.

Why: This fixes issue #382. Enable to use coderabbitai with Azure API.

Summary by CodeRabbit

• New Features

  • Introduced an AzureBot class for integrating with Azure services and OpenAI chat model.
  • Added new interfaces for bot communication and protocol standardization.
  • Enhanced application configuration to support Azure API parameters.

• Refactor

  • Updated the Bot class to implement the new BotProtocol interface.
  • Refactored code to use BotProtocol in place of direct Bot references, improving flexibility and maintainability.

Summary by CodeRabbit

• New Feature: Added support for Azure bot. Users can now configure the bot to use Azure API by specifying the instance name, deployment name, and version.
• Refactor: Introduced BotProtocol interface to improve flexibility and maintainability. The code can now handle different types of bots, not just the original Bot.
• Chore: Updated dependencies in the package.json file and added the skipLibCheck option to the TypeScript configuration file for better development experience.