Added banner.js script

Author: daniel-lundin

banner.js

@@ -0,0 +1,6 @@
+const pjson = require('./package.json');
+const moment = require('moment');
+const version = pjson.version
+const now = moment().format('YYYY-MM-DD');
+
+console.log(`/* snabbt.js Version: ${version} Build date: ${now} (c) 2015 Daniel Lundin @license MIT */`);