Read the StudentTest.txt data to get ten different scores for ten students. Create an calculateAverage function that calculates the average for each student and returns it to the main function. Create a PrintStudentScores that prints out each students scores and their grade calculated from calculateAverage Create a getLetterGrade function that returns the letter for each student depending on their score 90 and above is an A 89 to 80 is a B 79 to 70 is a C 69 to 60 is a D, 59 and below is a F