Use AS7 Deploy Ping Servlet to extract ProtocolMetadata

Instead of doing Archive scanning to figure out the ProtocolMetadata, we could reuse the Ping Servlet we use to check if the deployment is done to return the ProtocolMetadata from inside the server.

The Wait For:
https://github.com/arquillian/arquillian-container-openshift/blob/master/openshift-express/src/main/java/org/jboss/arquillian/container/openshift/express/OpenShiftExpressContainer.java#L230

The Extractor:
https://github.com/arquillian/arquillian-container-openshift/blob/master/openshift-express/src/main/java/org/jboss/arquillian/container/openshift/express/ping/DeploymentServlet.java

Similar MGM API Calls from AS7:
https://github.com/jbossas/jboss-as/blob/master/arquillian/common/src/main/java/org/jboss/as/arquillian/container/ManagementClient.java#L116