Added @XmlTransient annotation on classes that can not (in current Apache SIS version)
be (un)marshalled directly without the help of a JAXB adapter. The intend is to avoid
accidental misuse.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1614668 13f79535-47bb-0310-9956-ffa450edef68
Moved the GML internal package from sis-metadata to sis-utility,
because some GCO objects (e.g. LocalName) have a dependency to it


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1614670 13f79535-47bb-0310-9956-ffa450edef68