role for file pruning plugins to consume
whitespace
logging role
consume logging role in App::Embra
'embra command' prints log messages to stdout
new attr Role::Plugin->name
consume logging role in Role::Plugin
App::Embra::file strigifies to ->name
FilePruner role operates on reference to embra->files
instead of a local array copy
PublishFiles prunes out previously-published files
TemplateToolkit prunes out templates