(core): fix Tuto01DataServiceBasicCpp
Description
The source image loaded at start in Tuto01DataServiceBasicCpp was changed with the one used in Tuto02DataServiceBasic. This fixes the launch of this tutorial.
Closes #617 (closed)
How to test it?
Launch Tuto01DataServiceBasicCpp and observe it launches successfully; it should display an image with a white cube at the center.