Added d3 MVC 5 client for testing and epoch charting.
Revert "Delete SignalRClientWPF.sln"

This reverts commit 8c546d380ebd786f76a39040e071d212d9d4f83b.
Added d3, mvc 5 client, and epoch realtime charting.
Merge branch 'master' of https://github.com/lbacaj/SingalHub