WrapperInfo clone does not copy for unwrappedType datatype

The WapperInfo clone does not do a deep copy of unwrappedType datatype. This seemed to have regressed after Tuscany-3890. I will be sending in the fix to Ant. With this bug, one would see a ClassCastException such as the following

java.lang.ClassCastException: org.apache.xerces.dom.ElementNSImpl incompatible with org.apache.axiom.om.OMElement
at org.apache.tuscany.sca.databinding.axiom.OMElementWrapperHandler.setChild(OMElementWrapperHandler.java:91)
at org.apache.tuscany.sca.databinding.axiom.OMElementWrapperHandler.setChildren(OMElementWrapperHandler.java:77)
at org.apache.tuscany.sca.databinding.axiom.OMElementWrapperHandler.setChildren(OMElementWrapperHandler.java:50)
at org.apache.tuscany.sca.core.databinding.transformers.Input2InputTransformer.transform(Input2InputTransformer.java:213)
at org.apache.tuscany.sca.core.databinding.transformers.Input2InputTransformer.transform(Input2InputTransformer.java:46)
at org.apache.tuscany.sca.databinding.DefaultTransformerExtensionPoint$LazyPullTransformer.transform(DefaultTransformerExtensionPoint.java:209)
at org.apache.tuscany.sca.databinding.impl.MediatorImpl.mediate(MediatorImpl.java:116)
at org.apache.tuscany.sca.databinding.impl.MediatorImpl.mediateInput(MediatorImpl.java:444)
at org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.processRequest(DataTransformationInterceptor.java:69)
at org.apache.tuscany.sca.core.invocation.InterceptorAsyncImpl.invokeAsyncRequest(InterceptorAsyncImpl.java:65)