Initial Release

• gpt command line program
• supports the following commands:
  1. exit
     • will terminate the conversation
  2. clear
     • clears the whole chat history. The conversation will start from scratch
  3. undo
     • will remove the last request and answer from the chat history
  4. log
     • will activate logging. Each request will print the current chat history
  5. deactivate log
     • will deactivate logging