Remove xml-resolver dependency

[Jim Ma]

Hi ,
Since all the equivalent classes in xml-resolver.jar are all packaged in
jaxb-xjc.jar. We can change the org.apache.cxf.catalog.CataLogManager to
use com.sun.org.apache.xml.internal.resolver.* class to decrease 82k
distribution size. If there is no objection, I am going to commit the
change.

Cheers,
Jim