[BUG] Copyright checker

[cjnolet]

The copyright checker in pre-commit didn't seem to catch a copyright problem in a newly checked in file. This should have been fixed by the pre-commit hooks, but should also have been spotted by the CI style checker.

Upon further inspection, I don't see the copyright checker script in cuVS at all. We should 1) verify why it's not in the code, 2) add it if it should in fact be included, and 3) find out why the pre-commit hooks aren't firing properly for copyright issues.