Create wifi.js

Spoke to the immortal a few weeks ago and discussed with the wifi staff for a giveaway script in the wifi room, to help make giveaways more user friendly and easier for the staff in the room to set up giveaways in the room, I feel the script is finally complete and ready to be submitted.
<code>Users.get</code> returns an instance of <code>User</code> (or undefined), not a user id.