(graphics): use ogre to display videos in ARCalibration
Description
We currently use the vtk renderer to display video images in the calibration activity.
The problem with vtk is that we display video frames on 3d billboards meaning we sometimes end up with cropped edges.
Ogre doesn't have this problem because we cleverly re-center the image in the video fragment shader.
Proposal
- Port calibration scenes to ogre.