LDCad shadow library github repository

[Travis Cobbs]

A .csl is just a zipped version of the parts and p folders just like complete.zip. So you could indeed see it as a release of the 'source'.

Then that would normally be done on GitHub using a release, and attached to that release. GitHub itself will automatically generate a zip and tgz of the repository itself as the "source release", and you would manually attach the csl file to the release as a downloadable binary. If the CSL really is just a different extension of a zip, it might not hurt to include a LICENSE.md inside.