initial custom action library, "hello, world" quality

src/installer-ca/cost.h

+#pragma once
+//-------------------------------------------------------------------------------------------------
+// <copyright file="cost.h" company="Outercurve Foundation">
+//   Copyright (c) 2004, Outercurve Foundation.
+//   This software is released under Microsoft Reciprocal License (MS-RL).
+//   The license and further copyright text can be found in the file
+//   LICENSE.TXT at the root directory of the distribution.
+// </copyright>
+// 
+// <summary>
+//    Costs for various custom actions in WiX CA.
+// </summary>
+//-------------------------------------------------------------------------------------------------
+
+const UINT COST_SECUREOBJECT = 1000;
+const UINT COST_SERVICECONFIG = 1000;
+const UINT COST_XMLFILE = 1000;
+const UINT COST_CLOSEAPP = 500;
+const UINT COST_INTERNETSHORTCUT = 2000;