COMP: Fix failing setup of SegmentBloodVessels example

Should fix the folloing bug on the dashboard:

CMake Error at src/ITKExamplesMacro.cmake:97 (message):
  Syntax error in use of compare_to_baseline: EXAMPLE_NAME is required
Call Stack (most recent call first):
  src/Nonunit/Review/CMakeLists.txt:2 (compare_to_baseline)

Change-Id: Ic406c487b1f69c86577e9f098422f7a92122e594
Merge "COMP: Fix failing setup of SegmentBloodVessels example"