Added very nice DataGrid control

UserService.DatabaseLayer/Repository/SecurityGroupsRepository.cs

@@ -0,0 +1,11 @@
+using UserService.DatabaseLayer.DataModels;
+
+namespace UserService.DatabaseLayer.Repository
+{
+    public class SecurityGroupsRepository : BaseRepository<SecurityGroup>, ISecurityGroupsRepository
+    {
+        public SecurityGroupsRepository() : base(x => x.SecurityGroups)
+        {
+        }
+    }
+}