Use some wxX11 files (currently pen.cpp and brush.cpp) in wxMotif.

Add src/x11 to VPATH in configure, and add a new flag to filelist.txt
indicating a file used in wxMotif but not in wxMotif directory.
  Modifed VMS makefiles, too (should be checked by someone with VMS,
though).


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@19265 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/x11/brush.h

@@ -16,15 +16,15 @@
 #pragma interface "brush.h"
 #endif
 
-#include "wx/gdicmn.h"
 #include "wx/gdiobj.h"
-#include "wx/bitmap.h"
 
 //-----------------------------------------------------------------------------
 // classes
 //-----------------------------------------------------------------------------
 
 class wxBrush;
+class wxColour;
+class wxBitmap;
 
 //-----------------------------------------------------------------------------
 // wxBrush