Jeff.
Adds SAUCE data to XBin files based on mapping.csv. Was originally going to be
done in Python, but didn't wanna work too hard because the Python package I was
using didn't have an easy way to add comments.
So I went to Rust for icy_sauce because I knew it could. This is why this is
written pretty shit. Would argue though it's still readable given self-descriptive
names.
Input/output directories are ignored by Git. For how the output looks, feel free to look at the artpack on 16colo.rs.
For the funny