Refactor utils and organize routes/schema

utils/utils.js

@@ -0,0 +1,11 @@
+const account = require('./account');
+const array = require('./array');
+const cron = require('./cron');
+const date = require('./date');
+const mail = require('./mail');
+
+module.exports.account = account;
+module.exports.array = array;
+module.exports.cron = cron;
+module.exports.date = date;
+module.exports.mail = mail;