UV - panning each viewport when enable size synchronization feature.

When using panning with the size synchronization feature, images are panned based on the NZF value and on a Normalized Pan Position (NPP) value.
The Normalized Pan Position value is calculated using both the monitor's pixel spacing information and the
image's pixel spacing information.

But in some cases, some part are lacked when the customer zoomed image.

To avoid it, the customer expects if the user panning operation with a short cut key, it affects only image on the viewport, it doesn't affect other viewports.

ServiceCould Case# 05790662

SIte name: Tachikawa