Make security service dependency optional for webservice deployment

Webservice deployment all requires a security dependency to start EndpointService. 

This stops webservice galleon layer working without any security layer dependency.

18:45:19,859 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("deploy") failed - address: ([("deployment" => "jaxws-cxf-bus.war")]) - failure description: {
"WFLYCTL0412: Required services that are not installed:" => ["jboss.security.security-domain.other"],
"WFLYCTL0180: Services with missing/unavailable dependencies" => [
"jboss.ws.endpoint.\"jaxws-cxf-bus.war\".Ep2Servlet is missing [jboss.security.security-domain.other]",
"jboss.ws.endpoint.\"jaxws-cxf-bus.war\".EpServlet is missing [jboss.security.security-domain.other]"
]
}