Fix for scrolling (from QuickCompare)

[huiwanpnnl]

A scrolling issue has been fixed in QuickCompare. I just noticed that the same issue exists in QuickView as well (I am using v2.8.0).

[jourdain]

The issue is related to the "point hover" feature. I'll see it I can find a work around.

[jourdain]

commit 48c4415 (HEAD -> master)
Author: Sebastien Jourdain <sebastien.jourdain@kitware.com>
Commit: Sebastien Jourdain <sebastien.jourdain@kitware.com>

    fix(scroll): allow scroll to work on 3D view