message: Rename parameters for fillPopulationRequirements
diff: /**
  * Fills population requirements fields in a Structure.
  */
  -static void fillPopulationRequirements(PopulationPool& _p, const PopulationRequirements& _populationRequired, PopulationRequirements& _populationAvailable)
  +static void fillPopulationRequirements(PopulationPool& populationPool, const PopulationRequirements& required, PopulationRequirements& available)
  {
  - _populationAvailable[0] = std::min(_populationRequired[0], _p.populationAvailable(Population::PersonRole::ROLE_WORKER));
  - _populationAvailable[1] = std::min(_populationRequired[1], _p.populationAvailable(Population::PersonRole::ROLE_SCIENTIST));
  + available[0] = std::min(required[0], populationPool.populationAvailable(Population::PersonRole::ROLE_WORKER));
  + available[1] = std::min(required[1], populationPool.populationAvailable(Population::PersonRole::ROLE_SCIENTIST));
  }
  