BUG #14244: Fix stereo image capture.

Bring in VTK fix for the bug. At the same time, addresses other errors
raised when saving stereo image as the default stereo type ended up
being set to CrystalEyes.

Change-Id: I15b949fdf0587b1bb14117082dff4db3a9870d0b
Merge topic '14244_fix_stereo_image_captures' into next

35c40253 BUG #14244: Fix stereo image capture.