feat : Create route to add new book to database

[MahendraDani]

Description

Users should be able to add new books to the website. Your task is to create an API endpoint following the below guidelines

Difficulty

• Intermediate
• 30 Points

API Endpoint

POST http://localhost:3000/books/

Controller

/controllers/books/addBook.js

Request Body

• isbn
• title
• subtitle
• description
• author
• publisher
• publishedOn
• pages
• website

Response

{status : 200,
message : "New book added successfully"
book : {
            "isbn":"9781593279509",
            "title":"Eloquent JavaScript, Third Edition",
            "subtitle":"A Modern Introduction to Programming",
            "author":"Marijn Haverbeke",
            "published":"2018-12-04T00:00:00.000Z",
            "publisher":"No Starch Press",
            "pages":472,
            "description":"JavaScript lies at the heart of almost every modern web application, from social apps like Twitter to browser-based game frameworks like Phaser and Babylon. Though simple for beginners to pick up and play with, JavaScript is a flexible, complex language that you can use to build full-scale applications.",
            "website":"http://eloquentjavascript.net/"
        },