add version endpoint and version logging

src/index.js

@@ -2,6 +2,7 @@ const express = require('express');
 const helmet = require('helmet');
 const app = express();
 const PORT = process.env.PORT || 3000;
+const version = require('./lib/version').version();
 
 const api = require('./api');
 
@@ -12,5 +13,6 @@ app.use(helmet({
 app.use('/', api.router);
 
 app.listen(PORT, () => {
-  console.log(`🚀 Badge API running at http://localhost:${PORT}/`);
+  console.log(`[ ${new Date()} ] [ 🚀 BadgeDex version: ${version} ]`);
+  console.log(`[ ${new Date()} ] [ 🚀 BadgeDex API running at http://localhost:${PORT}/ ]`);
 });