functionality to compute the number of simulation runs

[pedro-andrade-inpe]

Study Rittler et al (2011) and implement a strategy to compute the number of simulation runs. This algorithm is useful for models based on randomness.

Ritter, Frank E., et al. "Determining the number of simulation runs: Treating simulations as theories by not sampling their behavior." Human-in-the-Loop Simulations. Springer London, 2011. 97-116.

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.185.3315&rep=rep1&type=pdf