* Support templating _from_files with --extra-vars for imported roles
* Add tests for templating the filenames for import_role, import_playbook, and import_tasks
* Add documentation
Co-authored-by: Alicia Cozine <879121+acozine@users.noreply.github.com>
Co-authored-by: Martin Krizek <martin.krizek@gmail.com>