added realname variable + setter method

src/user.js

@@ -1,12 +1,19 @@
 const userlist = require("../src/userlist.js")
 
 function User(socket) {
+
     this.nickname = ""
+    this.user = ""
+    this.realname = ""
+
     this.connection = socket
 
-  this.setNickname = function(nickname) {
+    this.setNickname = function (nickname) {
         this.nickname = nickname
     }
+    this.setRealName = function (realname) {
+        this.realname = realname
+    }
 }
 
 module.exports = User