Add Velero configuration files and update production kustomization

apps/prod/velero/kustomization.yaml

@@ -0,0 +1,17 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: velero
+
+resources:
+  - ../../base/velero
+  - secret.yaml
+  - release.yaml
+
+configMapGenerator:
+  - name: velero-prod-values
+    namespace: velero
+    files:
+      - values.yaml
+
+configurations:
+  - kustomizeconfig.yaml