Issue Description:

Currently, RuleUnitInstance.fire() doesn't take AgendaFilter as an argument. Technically, we can use AgendaFilter like this:

ReteEvaluator evaluator = (ReteEvaluator)((AbstractRuleUnitInstance) instance).getEvaluator();
evaluator.fireAllRules(new RuleNameStartsWithAgendaFilter("xxx"));

But this JIRA is to add a method `fire(AgendaFilter filter)` to RuleUnitInstance

Acceptance Criteria:

Have a method `RuleUnitInstance.fire(AgendaFilter filter)`