Added sample cds rule

.eslint/index.js

@@ -0,0 +1,15 @@
+const cds = require("@sap/eslint-plugin-cds");
+
+module.exports = {
+  configs: {
+    recommended: {
+      plugins: ["cloud-cap-samples"],
+      rules: {
+        "cloud-cap-samples/no-open-services": ["error", "show"]
+      }
+    }
+  },
+  rules: {
+    "no-open-services": cds.createRule(require("./rules/no-open-services")),
+  }
+};