Problem
1. Write an Ada function called Minimum that takes a parameter called Grade_List of type Grade_Array and returns the value of the lowest score in Grade_List.
2. Write an Ada procedure called Reverse_List that takes a parameter called Grade_List of type Grade_Array and reverses the order of the record components in Grade_List; that is, Grade_List(Grade_List'First) goes into Grade_List(Grade_List'Last), Grade_List (Grade_List'First+1) goes into Grade_List(Grade_List'Last-1), and so on.