Refactoring - split data, logic and model layers; custom network exception

StudentHouseDashboard/Models/ComplaintSeverity.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Models
+{
+    public enum ComplaintSeverity
+    {
+        LOW,
+        NORMAL,
+        HIGH,
+        URGENT
+    }
+}