Add a test for resolving expression in wsdl-uri-scheme attribute

<subsystem xmlns="urn:jboss:domain:webservices:2.0" statistics-enabled="${ws.statistics-enabled:false}">
   <modify-wsdl-address>${ws.modify-wsdl-address:true}</modify-wsdl-address>}}
   <wsdl-host>${jboss.bind.address:localhost}</wsdl-host>}}
   <wsdl-port>${ws.wsdl-port:9090}</wsdl-port>}}
   <wsdl-secure-port>${ws.wsdl-secure-port:9443}</wsdl-secure-port>}}
   <wsdl-uri-scheme>${ws.wsdl-uri-scheme:https}</wsdl-uri-scheme>}}
   <wsdl-path-rewrite-rule>s/jaxws-jbws2150-codefirst/xx\/jaxws-jbws2150-codefirst/g</wsdl-path-rewrite-rule>