Update 401 to use new Application Template structure

[wgthom]

All exercised need be updated to use new template structure

Need to updated grouper-loader.properties to match new folder template structure
app:mfa:service:policy:mfa_enabled
https://github.internet2.edu/docker/grouper_training/blob/master/ex401/ex401.1.1/container_files/grouper-loader.properties#L97