Added #

• Initial release of ml_metrics.
• Implemented accuracy, precision, recall, f1Score metrics.
• Added binaryConfusionMatrix function.
• Exported metrics via central ml_metrics.dart file.
• Included unit tests for all metric functions.
• Prepared documentation: README.md, LICENSE, and this CHANGELOG.md.

[Unreleased] #

Planned #

• ROC AUC metric
• Multi-class support for metrics
• Visual confusion matrix builder
• Integration with ml_knn, ml_logistic_regression, etc.