grades - Calculate sum of beans/5, hw, exams and print a report.
grades -l m/j
grades totals scores that students have earned for classwork, homework and exams. It adds the total beans (divided by 5) to homework, midterm and final scores and outputs the grade so far.
Beans (ie, classwork) are in classwork.yaml. Homework is in $hw/cumulative.yaml. (Use hwtotal to write this.) Exam scores are in $exams/g.yaml. $hw, $exams are in ./league.yaml.
