Add file headers.

Cicm.Database/Models/Resolution.cs

@@ -1,4 +1,34 @@
-using System.Collections.Generic;
+/******************************************************************************
+// Canary Islands Computer Museum Website
+// ----------------------------------------------------------------------------
+//
+// Filename       : Resolution.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// --[ Description ] ----------------------------------------------------------
+//
+//     Image resolution.
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as
+//     published by the Free Software Foundation, either version 3 of the
+//     License, or (at your option) any later version.
+//
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General Public License for more details.
+//
+//     You should have received a copy of the GNU General Public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright © 2003-2018 Natalia Portillo
+*******************************************************************************/
+
+using System.Collections.Generic;
 
 namespace Cicm.Database.Models
 {