Add jboss-web.xml to web deployments

This is needed to link the webapps to the security domain "jaspitest". We are currently reviewing the JASPIC configuration and we might remove the need for a security domain (in which case we can remove the jboss-web.xml files this commit is adding).

As of now we must configure a jaspitest security domain in standalone.xml to enable JASPIC before running the tests. This is how the domain looks like

<security-domain name="jaspitest" cache-type="default">
    <authentication-jaspi>
        <login-module-stack name="dummy">
            <login-module code="Dummy" flag="optional"/>
        </login-module-stack>
        <auth-module code="Dummy"/>
    </authentication-jaspi>
</security-domain>