Make sure that own header file is included first

Each header corresponding to a .cpp file must be self-contained,
and can be #included without prerequisites.

taglib/wavpack/wavpackfile.cpp

@@ -27,6 +27,8 @@
  *   http://www.mozilla.org/MPL/                                           *
  ***************************************************************************/
 
+#include "wavpackfile.h"
+
 #include "tbytevector.h"
 #include "tstring.h"
 #include "tdebug.h"
@@ -34,7 +36,6 @@
 #include "tpropertymap.h"
 #include "tagutils.h"
 
-#include "wavpackfile.h"
 #include "id3v1tag.h"
 #include "id3v2header.h"
 #include "apetag.h"

taglib/wavpack/wavpackproperties.cpp

@@ -27,11 +27,12 @@
  *   http://www.mozilla.org/MPL/                                           *
  ***************************************************************************/
 
+#include "wavpackproperties.h"
+
 #include <cstdint>
 #include "tstring.h"
 #include "tdebug.h"
 
-#include "wavpackproperties.h"
 #include "wavpackfile.h"
 
 // Implementation of this class is based on the information at: