Grader - Automaticaly re-create XDCs if missing #37
Description
This is more for the sphere_instructors repo, but when students' XDCs expire (two weeks without starting a lab), their XDC expires. If grades are pulled afterwards, they will get 0/100 for each lab because the xdc is inaccessible. Add a change to the grading script that will automatically re-create their XDC if it doesn't exist.