New Oculus Magnification Windows

Now the windows are manually toggled with the 3 key on the hydra. You can hold 3 to position the windows and when you let go it will lock into place. Pressing the trigger and bumper at the same time will toggle the UI.
something about this comment and all these [3]'s feels janky to me.

Should you maybe use....
```
enum {  MOUSE, LEFT_CONTROLLER, RIGHT_CONTROLLER, NUMBER_OF_MAGNIFIERS = RIGHT_CONTROLLER } ;
bool _reticleActive[NUMBER_OF_MAGNIFIERS];
int _mouseX[NUMBER_OF_MAGNIFIERS];
...
```