Update single objective intervals for example in ProblemSphere

[Mir1001]

upperLimit = new ArrayList(Collections.nCopies(numberOfDimensions, 200.0));
->upperLimit = new ArrayList(Collections.nCopies(numberOfDimensions, 100.0));

public ProblemSphere(int d) {
super(d,0);

    lowerLimit = new ArrayList<Double>(Collections.nCopies(numberOfDimensions, -100.0));
    upperLimit = new ArrayList<Double>(Collections.nCopies(numberOfDimensions, 200.0));

    name = "Sphere";
}

[Ravby]

Intervals for all singleobjective problems have been updated.