refactor folders to make prepare for native pdf parser

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

 #include "SkPdfAnnotationDictionary_autogen.h"
 
 std::string SkPdfAnnotationDictionary::Type() const {
   std::string ret;
   if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Type", "", &ret)) return ret;
   // TODO(edisonn): warn about missing required field, assert for known good pdfs
   return "";
 }
 
 std::string SkPdfAnnotationDictionary::Subtype() const {
@@ skipping 114 matching lines @@
   // TODO(edisonn): warn about missing required field, assert for known good pdfs
   return NULL;
 }
 
 long SkPdfAnnotationDictionary::StructParent() const {
   long ret;
   if (LongFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "StructParent", "", &ret)) return ret;
   // TODO(edisonn): warn about missing required field, assert for known good pdfs
   return 0;
 }