Change wxSound ctor from in-memory data to use size_t/void *.

This constructor previously used int and, especially annoyingly, wxByte* for
the data. Use standard void* for untyped binary data instead.

Also document this ctor as it seems to be implemented in all ports.

Closes #13451.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69178 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/cocoa/sound.h

@@ -25,7 +25,7 @@ public:
     wxSound(const wxString& fileName, bool isResource = false)
     :   m_cocoaNSSound(NULL)
     {   Create(fileName, isResource); }
-    wxSound(int size, const wxByte* data)
+    wxSound(size_t size, const void* data)
     :   m_cocoaNSSound(NULL)
     {   LoadWAV(data,size,true); }
     wxSound(const wxSound& sound); // why not?
@@ -43,7 +43,7 @@ public:
     {   return m_cocoaNSSound; }
 protected:
     bool DoPlay(unsigned flags) const;
-    bool LoadWAV(const wxUint8 *data, size_t length, bool copyData);
+    bool LoadWAV(const void* data, size_t length, bool copyData);
 private:
     WX_NSSound m_cocoaNSSound;
     static const wxObjcAutoRefFromAlloc<struct objc_object *> sm_cocoaDelegate;