codes re-organizatoion:
1) changed NeuralNetDescritor class name to NeuralTrainDescriptor
2) moved package training to inside businessLogic
1) generic case output array instead of single var
2) fixed equals method in RunTimeCase
3) changed method name kFoldsCrossValidationTrain-> crossValidationTrain
NeuralNetworkManager because it's not actually kFolds.
Added more methods and changed current in ProjectUtils for enabling
complementary subsets in training and to increase effective reuse.
Merge branch 'master' of
https://github.com/eliran-arbili/PainRecognitionJava.git

Conflicts:
	Pain Recognition Brain Side/src/businessLogic/NeuralNetworkManager.java
bug fix