Support wsdlvalidator in Quarkus code generation phase

[ppalaga]

Given that we already support wsdl2java via Wsdl2JavaCodeGen I think it would be quite easy to support wsdlvalidator in the same way. One would have to check the org.apache.cxf.maven_plugin.WSDLValidatorMojo class in CXF source tree and port the necessary code to a new class implementing io.quarkus.deployment.CodeGenProvider.

wsdlvalidator should probably have configuration separate from wsdl2java, perhaps quarkus.cxf.codegen.wsdlvalidator...

Update 2023-09-20:
Since Quarkus CXF 2.4.0, it is very easy to configure to configure wsdl2java to enforce validation through application.properties, e.g.:

quarkus.cxf.codegen.wsdl2java.includes = wsdl/foo.wsdl
quarkus.cxf.codegen.wsdl2java.validate = true

I guess this is what most of the users will look for. Anyway, feel free to 👍 or comment if you need a standalone wsdlvalidator