[SANTUARIO-403] - Support EncryptionProperty child elements

git-svn-id: https://svn.apache.org/repos/asf/santuario/xml-security-java/branches/1.5.x-fixes@1631979 13f79535-47bb-0310-9956-ffa450edef68
Updating Changelog

git-svn-id: https://svn.apache.org/repos/asf/santuario/xml-security-java/branches/1.5.x-fixes@1631980 13f79535-47bb-0310-9956-ffa450edef68