(visuOgreQt): fix crash in ogreResize()
What does this MR do?
Add a test to check if the ogre render windows is initialized before using it in the ogreResize()
method
How to test it?
Launch OgreViewer on a crappy old PC (in debug mode to be slower) and if you are unlucky you will have a crash in Window::ogreResize()
(nullptr)
Data
No required data
Associated issue
Closes #329 (closed)