/// <summary>
/// Returns -1 if I am BETTER in some way than the other Individual, 1 if the other Individual is BETTER than me,
/// and 0 if we are equivalent. The default implementation assumes BETTER means FITTER, by simply calling
/// CompareTo on the fitnesses themselves
/// </summary>
public int CompareTo(object o)
{
var other = (Individual)o;
return(Fitness.CompareTo(other.Fitness));
}