Introduce dummy program to help with API releases.

internal/crawl/config/webapp/frontend/deployment.yaml

@@ -0,0 +1,22 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: kustomize-search-ui
+spec:
+  selector:
+    matchLabels:
+      app: kustomize-search
+      tier: frontend
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: kustomize-search
+        tier: frontend
+    spec:
+      containers:
+      - name: frontend
+        image: gcr.io/kustomize-search/frontend:latest
+        ports:
+        - name: frontend-port
+          containerPort: 80