Add additional method metadata

[veewee]

Q	A
Type	improvement
BC Break	no
Fixed issues

Summary

Provide additional information that can be used to encode / decode SOAP envelopes.

+---------------------+-------------------------------------------+
| Meta                | Value                                     |
+---------------------+-------------------------------------------+
| docs                |                                           |
| action              | http://soapinterop.org/validate           |
| operationName       | validate                                  |
| location            | http://soapinterop.org/                   |
| targetNamespace     | http://soapinterop.org/                   |
| soapVersion         | http://schemas.xmlsoap.org/wsdl/soap/     |
| transport           | http://schemas.xmlsoap.org/soap/http      |
| bindingStyle        | rpc                                       |
| inputBindingUsage   | encoded                                   |
| inputNamespace      | http://soapinterop.org/                   |
| inputEncodingStyle  | http://schemas.xmlsoap.org/soap/encoding/ |
| outputBindingUsage  | encoded                                   |
| outputNamespace     | http://soapinterop.org/                   |
| outputEncodingStyle | http://schemas.xmlsoap.org/soap/encoding/ |
| isOneWay            | false                                     |
+---------------------+-------------------------------------------+