Photoshoop binary

I decided to upload a prebuilt binary of Photoshoop, in case anyone wanted to try it for whatever reason, but couldn't be bothered to go through the build process. It's a mess, though. Don't expect to get any practical use out of it...

End of semester 3

I am, however, planning to transfer some code (such as ACL, for sure, and perhaps AGF) from this repository to somewhere more permanent. Also, in the new repository, I intend to switch to C++20 (primarily for std::source_location), so this tag may serve as a backup of the C++17-compatible state of the libraries