Introduce a framework to the websocketproxy to allow a security
negotiation to take place between the proxy and the target service,
prior to connecting the client tenant to the target service.
Based on earlier work by Solly Ross <sross@redhat.com>
Change-Id: Ifb9360be73864ab45129c758bd1323a9bab8e48c
Co-authored-by: Stephen Finucane <sfinucan@redhat.com>
Implements: bp websocket-proxy-to-host-security
2a04b4dadf