Fix some includes in atlas

Make include-what-you-use happy with some files in source/tools/atlas
and fix what needs to be fixed.

Drop the wxWidgets specific handling of precompiled headers in some
places, it isn't consistently used which it would have to to have meaning
and was mostly for early VS implementation of precompiled headers and a
lot of time has gone by since.

Drop Borland C++ compiler specific quirk, that compiler was
discontinued long ago and doesn't support modern C++.

Ref: #8086
Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>

source/tools/atlas/AtlasUI/CustomControls/MapDialog/MapDialog.cpp

@@ -1,4 +1,4 @@
-/* Copyright (C) 2021 Wildfire Games.
+/* Copyright (C) 2025 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -19,11 +19,29 @@
 
 #include "MapDialog.h"
 
-#include "GameInterface/MessagePasser.h"
-#include "GameInterface/Messages.h"
+#include "tools/atlas/GameInterface/Messages.h"
+#include "tools/atlas/GameInterface/Shareable.h"
 
+#include <cstddef>
+#include <string>
+#include <vector>
+#include <wx/button.h>
+#include <wx/clntdata.h>
 #include <wx/filename.h>
+#include <wx/gdicmn.h>
+#include <wx/listbox.h>
+#include <wx/msgdlg.h>
 #include <wx/notebook.h>
+#include <wx/object.h>
+#include <wx/panel.h>
+#include <wx/sizer.h>
+#include <wx/stattext.h>
+#include <wx/textctrl.h>
+#include <wx/toolbar.h>
+#include <wx/toplevel.h>
+#include <wx/translation.h>
+
+class wxWindow;
 
 enum {
 	ID_MapDialogFilename = 1,