Refactor argparser printing to print_args()

[glenn-jocher]

🛠️ PR Summary

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🌟 Summary

Refactoring code to centralize argument printing across multiple scripts.

📊 Key Changes

• Introduced print_args function in utils/general.py to print arguments.
• Reordered some imports for consistency.
• Replaced individual argument printing in detect.py, export.py, tf.py, train.py, and val.py with calls to print_args function.
• In train.py, replaced a print statement with a logging statement.

🎯 Purpose & Impact

• 💡 Purpose: To streamline how script arguments are printed and to improve code maintainability.
• 📈 Impact: Developers and users will experience more uniform output when running scripts. This change also makes the codebase cleaner and easier to manage, potentially reducing future bugs related to logging and output formatting.