Update README.md

Add new EDA and SHAP plots for analysis results

Update requirements.txt: add seaborn dependency

Add explainability module: implement SHAP analysis for ensemble model predictions

Refactor ensemble_model.py: remove PCA components from KNN model and adjust preprocessor setup

Refactor tuning.py: remove unused imports and streamline preprocessor setup

Refactor feature engineering: remove PCA components and streamline preprocessing

Implement data preprocessing

Implement EDA

Build an ensemble model

Complete data preprocessing and feature engineering

Perform hyper parameter tuning

Initial commit