added print_high_confidence_samples

...rning_models/resulting_figures/KNN - Confusion Matrix.png

...achine_learning_models/resulting_figures/KNN - Counts.png

...ulting_figures/Logistic Regression - Confusion Matrix.png

...models/resulting_figures/Logistic Regression - Counts.png

...dels/resulting_figures/Logistic Regression - Features.png

...dels/resulting_figures/Logistic Regression - Heat Map.png

code/machine_learning_models/utilities.py