Changed the location of the request button and added a restaurant hour implementation

Right now restaurant hours are stored as strings, but use a multi-line input so that they can actually be formatted fairly nicely. It's quick and dirty, but allows for a myriad of user options in displaying without a huge overhead on us.
Also, the request button is now located on the restaurant info page. Everything should work there, but seeing as I don't have a device I didn't check the actual message sending. The button to send a request will only appear if you have an active dining session with the restaurant selected.