Store the original GDI palette functions in pfnSelectPalette and
pfnRealizePalette so that USER doesn't have to import them.

diff --git a/include/user.h b/include/user.h
index ccd0a81..84268b4 100644
--- a/include/user.h
+++ b/include/user.h
@@ -140,6 +140,8 @@
 /* syscolor.c */
 extern HPEN SYSCOLOR_GetPen( INT index );
 
+extern HPALETTE WINAPI SelectPalette( HDC hDC, HPALETTE hPal, BOOL bForceBackground );
+
 extern DWORD USER16_AlertableWait;
 
 /* HANDLE16 <-> HANDLE conversions */