Add additional barbican settings into uni01alpha

For volume encryption and images signing there are some
additional tripleo settings needed for nova, glance, and
swift.

Author: jagee

scenarios/uni01alpha/config_download.yaml

@@ -49,6 +49,7 @@ parameter_defaults:
     nova::compute::libvirt::services::libvirt_virt_type: qemu
     nova::compute::libvirt::virt_type: qemu
   BarbicanSimpleCryptoGlobalDefault: true
+  SwiftEncryptionEnabled: true
   Debug: true
   DockerPuppetDebug: true
   ContainerCli: podman