at or schtasks create on Windows #188
Description
We've recently enabled CATS to run on Windows by adding a dependancy on the zoneinfo module for that platform. However, our at integration will not work. For a local more or less equivalent scheduler, we'll need to add support for the Windows at command or the schtasks create command.
Before we do this, it would be useful to finish work on removing cli code from within __init__.py (see #117). We should also investigate the two options and work out which is more generally applicable. We should look at what's supported on WSL installations. It would be good to document the process of adding a new scheduler to our developer docs as we go.