Review the execution of operations in PSE Simulation

I noticed a difference between the current TVB version and the old one regarding PSE simulations. It's best if I explain it with an example:

Let's say I want to choose model.a and model.c as range parameters and for model.a min = -5, max = 5, step = 5 and for model.c min = -10, max = 10, step = 10. In the old version this simulation launch would result in model.a taking the values of [-5, 0, 5] and model.c taking the values of [-10, 0, 10], 9 operation in total. In the current version there would be only 4 operatios. So basically in the old version the interval of range values was a closed one, that's why 5 and 10 are included despite being the max values. In the current version they are not included, the interval is open.

We should investigate if there was a reason for this change and if there was not, then it is considered as a bug and therefore it should be fixed.