Exercise 147
- Create a new index147.js
 - Copy and paste the code from the previous exercise
 - Refactor the code to match the requirements
 - The shouldOpenBatCave function not longer accepts two parameters
 - Now the shouldOpenBatCave function only accepts a user parameter
 - Instead of calling the shouldOpenBatCave function passing username and password now we only pass the user object
 - The rest of the code should still work the same way and show the proper output