(svn r11706) -Codechange: split vehicle.h and remove another bunch of useless includes.

src/sound.cpp

@@ -7,7 +7,6 @@
 #include "landscape.h"
 #include "mixer.h"
 #include "sound.h"
-#include "vehicle.h"
 #include "viewport.h"
 #include "fileio.h"
 #include "newgrf_sound.h"
@@ -15,6 +14,7 @@
 #include "window_gui.h"
 #include "core/alloc_func.hpp"
 #include "map_func.h"
+#include "vehicle_base.h"
 
 static uint _file_count;
 static FileEntry *_files;