[BB-844] - SSO Feature and haproxy addition

Adding support for below block to values files:

sso:
  enabled: false
  namespace: ... (default: istio-addons-sso)
  selector:
    key: ... (default: protect)
    value: ... (default: keycloak)

When enabled and umbrella add-on is enabled, kiali+tracing URLs will be placed behind Keycloak redirection+auth. This is accomplished by creating new kiali-auth/tracing-auth VirtualServices along with an haproxy installation inside the namespace within sso.namespace which alongside authservice will work in conjunction to