Include wx/object.h according to precompiled headers of wx/wx.h (with other minor cleaning).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@38839 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/object.cpp

@@ -14,12 +14,12 @@
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
 #ifndef WX_PRECOMP
-    #include "wx/hash.h"
     #include "wx/object.h"
+    #include "wx/hash.h"
 #endif
 
 #include <string.h>