Distinguish between ABOUT files found in the codebase vs. curations

In the d2d pipeline, the "curations" are ABOUT files designed to document code on the To side and are stored in the "From" side

There could also be "regular" ABOUT files in any of the codebases that would have been created by the maintainers of the repo to document code that lives side-by-side to these ABOUT files, like is done in SCTK or SCIO.

These are different!!!