add consultant class

src/Banquale/Banquale/Model/Consultant.cs

@@ -0,0 +1,14 @@
+using System;
+namespace Banquale.Model
+{
+	public class Consultant : Person
+	{
+
+		public List<Message> MessagesList = new List<Message>();
+
+        public Consultant(string name, string firstName, uint id, string password) : base(name, firstName, id, password)
+        {
+		}
+	}
+}
+

src/Banquale/Banquale/Model/Message.cs

@@ -0,0 +1,19 @@
+using System;
+namespace Banquale.Model
+{
+	public class Message
+	{
+
+        public string Subject { get; private set; }
+
+        public string Description { get; private set; }
+
+        public Message(string subject, string description)
+        {
+            Subject = subject;
+            Description = description;
+        }
+
+    }
+}
+