static void CreateInstructor ()
        {
            var db = new SchoolContext();

            var instructor = new Instructor()
            {
                Firstname = "Benjamin",
                Lastname = "Fallar III",
                HireDate = DateTime.Now
            };

            db.People.Add(instructor);
            db.SaveChanges();
        }
        static void CreateStudent ()
        {
            var db = new SchoolContext();

            var student = new Student()
            {
                Firstname = "Rache",
                Lastname = "Asto",
                EnrollmentDate = DateTime.Now
            };

            db.People.Add(student);
            db.SaveChanges();
        }