added data model and user model

whatsapp-web.js/src/models/user.js

@@ -0,0 +1,43 @@
+
+const {Website} = require('./website');
+
+class User{
+
+    constructor(id){
+        this.id = id;
+        //uses key value pair to store website
+        //key is the companyName of the website
+        //value is the website itself
+        this.websites = {};
+    }
+
+    /**
+     * 
+     * @param {Website} website 
+     */
+    addWebsite(website){
+        if(this.websites[website.companyName] != undefined)
+        {
+            return false;
+        }else{
+            this.websites[website.companyName] = website;
+            return true;
+        }
+    }
+
+    deleteWebsite(companyName){
+        if(this.websites[companyName] != undefined)
+        {
+            return delete this.websites[companyName];
+        }else{
+            return false
+        }
+    }
+
+    getWebsite(companyName){
+        return this.websites[companyName];
+    }
+
+}
+
+module.exports.User = User;