Adding a Action -> Policy test for a KeyIdentifier fix

Conflicts:
	rt/ws/security/src/main/java/org/apache/cxf/ws/security/wss4j/policyvalidators/X509TokenPolicyValidator.java
	systests/ws-security/src/test/java/org/apache/cxf/systest/ws/action/ActionTest.java
	systests/ws-security/src/test/resources/org/apache/cxf/systest/ws/action/DoubleItAction.wsdl
	systests/ws-security/src/test/resources/org/apache/cxf/systest/ws/action/client.xml
Recording .gitmergeinfo Changes
Backporting KeyIdentifier test + fix