xcopy: Build language resource files separately.

Do not include them from an other rc file.

programs/xcopy/Si.rc

diff --git a/programs/xcopy/Si.rc b/programs/xcopy/Si.rc
index 092282c..1013837 100644
--- a/programs/xcopy/Si.rc
+++ b/programs/xcopy/Si.rc
@@ -19,6 +19,8 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
+#include "xcopy.h"
+
 #pragma code_page(65001)
 
 LANGUAGE LANG_SLOVENIAN, SUBLANG_DEFAULT
@@ -78,5 +80,3 @@
 \t\tod izvora\n\n"
 
 }
-
-#pragma code_page(default)