Fix(Convoys_GameofLife): Fix Windows curses crash, screen bounds error, add presets & ANSI fallback (#529)

[Prayas340]

Description

This Pull Request refactors and improves the Conway's Game of Life simulation (Convoys_GameofLife):

• Decouples the simulation rules and grid state into a standalone, testable GameOfLifeEngine.
• Resolves crashes on Windows when curses is not present by adding an ANSI terminal fallback mode as well as windows-curses documentation in requirements.txt.
• Adds safe_addstr() to prevent curses.error: addstr() returned ERR when the terminal is resized or when rendering near boundaries.
• Implements the previously unused pause variable, adding interactive controls for Pause/Resume (Space/p), Single-Step (n), Randomize (r), Clear (c), Wrap toggle (w), and Speed adjustment (f/s).
• Adds built-in pattern presets: Glider, Blinker, Toad, Beacon, Pulsar, and Gosper Glider Gun (1-5 keys or --preset flag).
• Adds full CLI automation flags (--cli, --preset, --speed, --rows, --cols, --steps, --no-wrap).
• Adds an automated unit test suite in test_game_of_life.py (9/9 tests passing).
• Adds requirements.txt and updates README.md with complete documentation.

Fixes #529

• Issue_no: Bug & Feature(Convoys_GameofLife): Fix Windows curses crash, screen bounds errors, dead pause var, add presets & ANSI fallback #529
• Not applicable

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Documentation Update

Project

• Your Project Name: Convoys_GameofLife

• Short Description: Terminal simulation of Conway's Game of Life with curses UI, ANSI terminal fallback, and pattern presets.

Checklist:

• I have named my files and folder, according to this project's guidelines.
• My code follows the style guidelines of this project.
• I have commented on my code, particularly in hard-to-understand areas.
• I have created a helpful and easy to understand README.md, according to the given README_TEMPLATE.
• My changes do not produce any warnings.
• Added automated test suite test_game_of_life.py.
• Added requirements.txt.