fix: add require of lodash in helpers

Currently the postinstall.js requires helpers and tries to execute some methods of it. However, CLI is not bootstraped and the global variable `_` is not set, so the action fails. Fix the code by adding require to `lodash` in the current file.
The other option of fix is to remove the `helpers` require from postinstall script to `post-install-cli` command. However, the current check is if we should execute the postinstall actions - if we move the check to the command, the commands service will still execute the check and prompt the user to allow tracking, which is not a desired behavior.

Author: rosen-vladimirov

lib/common/helpers.ts

@@ -5,6 +5,7 @@ import { ReadStream } from "tty";
 import { Configurations } from "./constants";
 import { EventEmitter } from "events";
 import * as crypto from "crypto";
+import * as _ from "lodash";
 
 const Table = require("cli-table");