Create new estimation for parameters of local functions (ParEst)

[YMRodriguez]

This issue is important because it refines the optimization algorithm. The approach is:

1. Determine all the parameters to optimize.
2. Create a global fitness function depending on the final result of a packing process (i.e. Volume Occupied combined with unloading obstacles a global estimation of how secure is the solution depending on the average of supported area, etc)
3. Optimize the value of these parameters with a specific optimisation strategy.
4. Apply the optimisation in different scenarios and estimate the best global value.