Finished coding and testing SQLiteReservationsDAO

So this isn't something to harp on in this project, because we know how Tsui is going to grade, and if our code is a little sloppy who cares. But normally, a constructor is for things that are absolutely necessary and *usually* doesn't change. So really the only thing that would normally be in here is the reservation id and then everything will be set by the setters (and magically there wouldn't be a setter for the reservation id). But not a big deal here.

On a side note, why do we have a userId here? That doesn't have anything to do with the `Reservation`. That, my friends, is an example of (unnecessarily) tightly coupled code and we should change it