Fix rounding error in msvQTimePlayerWidget
Fix rounding error in msvQTimePlayerWidget

When the range was 5.0, the number of steps 6, timeToFrame failed to
return 3 when time is 3.0. It was casting 2.99999999 in 2

MSV-Project/MSVTK,MSV-Project/MSVTK,MSV-Project/MSVTK