Fixes #1678 .

• here's the preview of me running the same game:
  https://github.com/user-attachments/assets/c0f7a553-f4d7-4714-9e28-a9beac432df5

Changes Made:

• Worked on correcting the conditions as per the README of https://github.com/douglasbagnall/p4wn/tree/master .
• The previous conditions was checking perhaps the possibility of the draw and not the draw actually. So it was not needed.
• Essentially it was implementing what was already implemented in the engine, check
  P4_MOVE_FLAG_DRAW = 64 a draw is available from the README.

Further Improvements

• The engine is kind of old, I have added comments to understand what conditions is doing what operations.
• We can use the engine's p4_move2string function to easy our approach in the game. ( I shall perhaps create an issue on this and then work on this).
• Further tests from the original library can be added if using the same engine.