Timer added

This timer is essentially the same as Frank Luna's DirectX book's timer.
It's convenient, and so I'm using it. It's well written too!
Update at 60fps

I've added a bit to the timer to update every 60fps.
Working on timer

I'm modeling my timers to work like the DXUT timers do. I still have to
do a little work to make sure I can pass the correct update numbers into
the functions.