Create data_cleaning.py

[advaitathalye]

Automated data cleaning: Removed print statement & improved processing

[advaitathalye]

Automated data cleaning using Python and Pandas. It streamlines preprocessing by handling missing values, removing duplicates, standardizing formats, and optimizing data types. This improves efficiency and ensures cleaner datasets for analysis
Changes Made:
✅ Implemented Python script for automated data cleaning using Pandas
✅ Removed missing values and duplicate entries
✅ Standardized datetime formats for consistency
✅ Optimized data types for better performance
✅ Improved code efficiency and readability.