NormalDistributedCutPointsThresholdCalculator ignores misclassification penalties

[gkronber]

When solving classification problems it is possible to assign class-specific misclassification costs. The NormalDistributedCutPointsThresholdCalculator determines threshold values for the discriminant function by assuming the output values of the discriminant function are class-wise normally distributed. If class-specific misclassification costs are specified it would be necessary to adjust these thresholds accordingly.