RulesEnricher created in ARQ-1954

1. RulesEnricher is not implementor of TestEnricher, so it cannot be overrided through LoadableExtension.

2. RulesEnricher#enrichRulesAndTestInstance adds into collection toEnrich test instance:

        toEnrich.add(event.getTestInstance());

https://github.com/arquillian/arquillian-core/blob/master/junit/core/src/main/java/org/jboss/arquillian/junit/RulesEnricher.java

So, if MyTest have`nt field rules, will be only one MyTest enrichment. If MyTest contains one or more test rule, will be two MyTest enrichments.
Each testEnrichment of MyTest do a soap call to server to prepare data for test. It is very important to me, one or two soap call will happen.

How can I change this behaviour?