TrigMultiVarHypo: MultiLayerPerceptron propagate. Avoid manually allocations. Relates to ATR-23907
TrigMultiVarHypo: MultiLayerPerceptron propagate. Avoid manually allocating a dynamic array of dynamic arrays of doubles. use std::vector .
Some other smaller clang-tidy related fixes (mainly trying to avoid unitialized values)
Mentioning @rbielski