title: Generate xs:date instead of xs:dateTime for WebParam
body: <p>I have a jax-ws web-service with web-method:</p>
  
  <pre><code>@WebMethod
  void SetCurrentDate(Date date)
  </code></pre>
  
  <p>In generated wsdl parameter date has type xs:dateTime, but i need xs:date.
  I tried XmlGregorianCalendar, but it maps to xs:anySimpleType, also i tried @XmlSchemaType, but it's not allowed for parameters.
  How can I generate wsdl with xsd:date instead of xsd:dateTime?</p>