refactor folders to make prepare for native pdf parser

experimental/PdfViewer/pdfparser/podofo/autogen/SkPdfAlternateImageDictionary_autogen.cpp

 #include "SkPdfAlternateImageDictionary_autogen.h"
 
 SkPdfStream* SkPdfAlternateImageDictionary::Image() const {
   SkPdfStream* ret;
   if (StreamFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Image", "", &ret)) return ret;
   // TODO(edisonn): warn about missing required field, assert for known good pdfs
   return NULL;
 }
 
 bool SkPdfAlternateImageDictionary::DefaultForPrinting() const {
   bool ret;
   if (BoolFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "DefaultForPrinting", "", &ret)) return ret;
   // TODO(edisonn): warn about missing required field, assert for known good pdfs
   return false;
 }