ability to write logs of test run to a file for nodejs tests

server/tests/js_tests/package.json

@@ -12,10 +12,12 @@
   "license": "BSD-2-Clause",
   "dependencies": {
     "colors": "^1.1.2",
+    "moment": "^2.17.1",
     "node-ssdp": "^3.2.0",
     "q": "~1.4.1",
     "request": "^2.78.0",
     "sprintf-js": "~1.0.3",
+    "winston": "^2.3.1",
     "yargs": "^6.3.0"
   }
 }