We are using an older version of python-keras and tensorflow
and therefore need to backport the AUC optimizations from 2.3.1

Update inputs based on upstream's changes, add comments about skipped
input. Add hidden package of package-without-tests as dependency.

This commit does many things:
Adjust for upstream update.
Fix the error not allowing us to download new data.
Use self-compiled binaries instead of downloading from upstream.
Install more scripts.
Wrap all the programs and scripts so they can work in a pureenvironment.

The magic '@@' no longer works since the upstream switch to guile3.0