Fix bugs and add new features

[lighting9999]

change :

• Add doctests and fix bugs.
• fix ruff format
• Refactor and update various Python scripts
• Removed obsolete configuration files (.vscode/launch.json, .vscode/settings.json).
• Deleted unused binary files (class.dat, studrec.dat).
• Added new script for NumPy array exponentiation with detailed docstring and examples.
• Enhanced Random Number Guessing Game with structured functions and improved documentation.
• Introduced Snake-Water-Gun game with clear rules and structured gameplay.
• Updated Tic-Tac-Toe game with type hints and doctests for better clarity and testing.
• Removed old calculator script and replaced it with a new simple calculator module.
• Implemented a password guessing simulation script with random character choices.
• Improved sum of digits calculation with input validation and structured main function.
• Cleaned up and removed unnecessary files and scripts to streamline the project.
• Implemented a Tic-Tac-Toe game with AI using Minimax algorithm (tic-tac-toe3.py).
• Created a random two-player Tic-Tac-Toe game using NumPy (tic-tac-toe4.py).
• Developed a two-player Tic-Tac-Toe game with full type hints and doctests (tic-tac-toe5.py).
• Added a series of Tic-Tac-Toe games with score tracking (tic-tac-toe6.py).
• Removed outdated Tic-Tac-Toe implementations (TicTacToe.py, tic-tac-toe.py, tic_tak_toe.py).
• Introduced a Tkinter-based clock difference calculator with doctests (Timetable_Operations.py).
• Enhanced leap year checker with doctests and improved input handling (to check leap year.py).