DM-33910: Write PipelineTask to detect Cosmic Rays on difference images

[kherner]

No description provided.

[isullivan]

I'm sorry for the large number of comments! There is a lot of code that can still be removed, and the documentation needs to be updated.

Beyond the cleanup, the most significant change I'm requesting is removing repairPostDiff.py entirely, and just using the existing repair.py. I think that one should work as-is, so the code duplication is unnecessary.

[kherner]

Something went haywire during that filesystem problem when I was trying to push stuff. I've got a good copy of cosmicRayPostDiff.py now; I think the easiest thing to do is to delete the ticket branch in git, remake it, copy the file (post-review changes included) in, and proceed that way.

[kherner]

Something went haywire during that filesystem problem when I was trying to push stuff. I've got a good copy of cosmicRayPostDiff.py now; I think the easiest thing to do is to delete the ticket branch in git, remake it, copy the file (post-review changes included) in, and proceed that way.

OK, finally fixed.

[isullivan]

Looks good! I had a few fairly minor comments for cleaning it up.