VS: Restore CMakeLists.txt references in each target
The custom command de-duplication added by !1889 (merged) accidentally also applied to the CMakeLists.txt
file
reference we put in each target. This file reference comes with a
custom command that has no dependencies and that is safe to run
repeatedly across multiple targets (via internal stamp checking).
Therefore it should be excluded from the de-duplication so that
CMakeLists.txt
references appear in all targets for human reference.
Fixes: #18310 (closed)