ch04s09 Add build-app project for lab

build-app/package.json

@@ -0,0 +1,14 @@
+{
+  "name": "nodejs-helloworld",
+  "version": "1.0.0",
+  "description": "Hello World!",
+  "main": "app.js",
+  "scripts": {
+    "start": "node app.js"
+  },
+  "author": "Red Hat Training",
+  "license": "ASL",
+  "dependencies": {
+    "express": "4.14.x"
+  }
+}