New features ✨

• #176 extended EDA - thanks to @shahules786

Bug fixes 🐛

• #201 error in golden features sampling
• #199 bug for float multi-class labels
• #196 add exception for empty data
• #195 set threshold for accuracy metric instead f1
• #194 ensemble should be best model if has more than 1 model
• #193 fixed predict aflter model loading
• #192 update pyarrow
• #191 hide shap warnings
• #190 fix in preprocessing
• #188 fix type in feature selection - thanks to @uditswaroopa