refactor folders to make prepare for native pdf parser

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

 #include "SkPdfEncodingDictionary_autogen.h"
 
 std::string SkPdfEncodingDictionary::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 SkPdfEncodingDictionary::BaseEncoding() const {
   std::string ret;
   if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "BaseEncoding", "", &ret)) return ret;
   // TODO(edisonn): warn about missing required field, assert for known good pdfs
   return "";
 }
 
 SkPdfArray* SkPdfEncodingDictionary::Differences() const {
   SkPdfArray* ret;
   if (ArrayFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "Differences", "", &ret)) return ret;
   // TODO(edisonn): warn about missing required field, assert for known good pdfs
   return NULL;
 }