Fleshed out entity classes and created command to create student

BrightGlimmer.Domain/Student.cs

@@ -11,19 +11,44 @@ namespace BrightGlimmer.Domain
         [NotMapped]
         private readonly int MAX_STUDENT_NUMBER = 100000000;
 
-        public int StudentNumber { get; set; }
+        public int StudentNumber { get; private set; }
         public string FirstName { get; set; }
         public string MiddleName { get; set; }
         public string LastName { get; set; }
-        public string Email { get; set; }
-        public List<Phone> Phones { get; set; }
+        public string Email { get; private set; }
         public Address Address { get; set; }
         public string ProfilePictureUrl { get; set; }
-        public List<AssignedCourse> AssignedCourses { get; set; }
 
-        public Student() : base()
+        private readonly List<Phone> phones = new List<Phone>();
+        public IReadOnlyList<Phone> Phones => phones;
+
+        private readonly List<AssignedCourse> assignedCourses = new List<AssignedCourse>();
+        public IReadOnlyList<AssignedCourse> AssignedCourses => assignedCourses;
+
+        private Student() { }
+
+        public Student(string firstName, 
+                       string lastName, 
+                       string email,
+                       List<Phone> phones,
+                       Address address) : base()
         {
             StudentNumber = new Random().Next(MAX_STUDENT_NUMBER); /* TODO: Optimize student number creation */
+            FirstName = firstName;
+            LastName = lastName;
+            Email = email;
+            Address = address;
+            this.phones = phones;
+        }
+
+        public void AddPhone(Phone phone)
+        {
+            phones.Add(phone);
+        }
+
+        public void AddAssignedCourse(AssignedCourse assignedCourse)
+        {
+            assignedCourses.Add(assignedCourse);
         }
     }
 }