Fill out bink stub

Max 2012 doesn't like getting a null from ClassDesc2::Create(). I can't
blame it.

Sources/Tools/MaxPlasmaMtls/plBinkBitmap.cpp

@@ -42,18 +42,43 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 
 #include "HeadSpin.h"
 #include "hsWindows.h"
+
+#include <bmmlib.h>
 #include <iparamb2.h>
 #pragma hdrstop
 
-class BinkClassDesc : public ClassDesc2
+/** Stubbed out BitmapIO instance for deprecated bink layers **/
+class plBinkBitmapIO : public BitmapIO
 {
 public:
-    int IsPublic() { return 1; }
-    void* Create(BOOL loading=FALSE)
+    int ExtCount()                  { return 1; }
+    const TCHAR* Ext(int n)         { return _T("bik"); }
+
+    const TCHAR* LongDesc()         { return _T("DEAD: Bink File"); }
+    const TCHAR* ShortDesc()        { return _T("Bink"); }
+
+    const TCHAR* AuthorName()       { return _T("Colin Bonstead"); }
+    const TCHAR* CopyrightMessage() { return _T("Copyright 2004, Cyan Inc."); }
+    unsigned int Version()          { return 100; }
+
+    int Capability()                { return 0; }
+    DWORD EvaluateConfigure()       { return 0; }
+    BOOL LoadConfigure(void* ptr)   { return FALSE; }
+    BOOL SaveConfigure(void* ptr)   { return FALSE; }
+
+    BMMRES GetImageInfo(BitmapInfo* fbi) { return BMMRES_INTERNALERROR; }
+    BitmapStorage* Load(BitmapInfo* fbi, Bitmap* map, BMMRES* status) { return nullptr; }
+    void ShowAbout(HWND hWnd)
     {
-        hsAssert(false, "bink layers removed due to license issues");
-        return nil;
+        hsMessageBoxWithOwner(hWnd, "Bink Layers removed due to license issues", "DEAD", hsMessageBoxNormal, MB_ICONEXCLAMATION);
     }
+};
+
+class BinkClassDesc : public ClassDesc2
+{
+public:
+    int IsPublic() { return 1; }
+    void* Create(BOOL loading=FALSE) { return static_cast<void*>(new plBinkBitmapIO); }
 
     const TCHAR* ClassName() { return "Bink"; }
     SClass_ID SuperClassID() { return BMM_IO_CLASS_ID; }