[CXF-5025] - Support WS-SecurityPolicy "Strict" Layout validation

Conflicts:
	rt/ws/security/src/main/java/org/apache/cxf/ws/security/wss4j/policyvalidators/AbstractBindingPolicyValidator.java
	rt/ws/security/src/main/java/org/apache/cxf/ws/security/wss4j/policyvalidators/TransportBindingPolicyValidator.java

git-svn-id: https://svn.apache.org/repos/asf/cxf/branches/wss4j2.0-port@1484449 13f79535-47bb-0310-9956-ffa450edef68