Include a working JAX-WS configurator in the m2e catalog

there are compilation/build errors when importing projects using the jaxws maven plugin (see javaee7-samples case on JBDS-2847), because the project is not properly configured during the import. Generated code from the project's WSDL would be missing.
The known work-around is to invoke maven from command-line to have the code generated.

Having a fine-tuned, working m2e configurator (ie, tuned for incremental builds and not triggering a full interface generation when some unrelated file is edited) would fix the problem.