OpenGLQt: fixed widget offset, closes inviwo/inviwo-dev#1185
OpenGLQt: fixed widget offset, closes inviwo/inviwo-dev#1185

* processor widgets are offset (Windows) when loading workspace. The offset position was then serialized causing the moving window.


Sparkier/inviwo,inviwo/inviwo,inviwo/inviwo,inviwo/inviwo,inviwo/inviwo,Sparkier/inviwo,Sparkier/inviwo,Sparkier/inviwo,Sparkier/inviwo,inviwo/inviwo,inviwo/inviwo