Add lodash to main package.json

Author: dhwaneetbhatt

package.json

@@ -25,6 +25,7 @@
   "license": "Apache-2.0",
   "homepage": "https://github.com/postmanlabs/code-generators",
   "dependencies": {
+    "lodash": "4.17.21",
     "async": "3.2.2",
     "path": "0.12.7",
     "postman-collection": "4.0.0",