Clarify @Vetoed on recursive package

It's not clear in the specification is @Vetoed only apply to the current package or subpackages as well. This has been addressed on CDI-299 but not solved. Either, we make it clearer in the spec that it only addresses the current package and not subpackages, or we could have a boolean, such as recursive :

@Vetoed(recursive=true)
package my.parent.package;

import javax.enterprise.inject.Vetoed;