evaluate each population member based on fitness
first process the AbleBeans contained in this SearchAgent
if an evaluationAgent bean exists, process() it
compute min, max, avg, and total fitness
if normalization is specified, then normalize the raw fitness values
This class is a command line test case (it has a main() method)
that creates a fuzzy ruleset, a fuzzy ruleset listener, wires the
two together, and then processes the rules.