Add manifest for ns/openshift-lightspeed

Author: hongkailiu

install/0000_00_cluster-version-operator_45_openshift-lightspeed_namespace.yaml

@@ -0,0 +1,9 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: openshift-lightspeed
+  annotations:
+    kubernetes.io/description: This manifest is only for testing purpose and will be removed when its own operator becomes available on the cluster.
+    include.release.openshift.io/self-managed-high-availability: "true"
+
+