Move GameHub.cs to the Controller folder

Move the functionality from ChatHub to GameHub
Delete Hubs folder and ChatHub.cs
Small edits to BlackJack.js
Create an index.cshtml file for blackjack (lets see about that)
Add chat to Details and Index view of GameController
Add some script references to _Layout.cshtml
Merge branch 'master' of github.com:7oi/whoopshop