ENH: Linking new extended filename option with GDALImageIO flag

Modules/IO/ImageIO/include/otbImageFileWriter.txx

@@ -463,7 +463,7 @@ ImageFileWriter<TInputImage>
 
   // Manage extended filename
   if ((strcmp(m_ImageIO->GetNameOfClass(), "GDALImageIO") == 0)
-      && m_FilenameHelper->gdalCreationOptionsIsSet()   )
+      && (m_FilenameHelper->gdalCreationOptionsIsSet() || m_FilenameHelper->WriteRPCTagsIsSet())  )
     {
     typename GDALImageIO::Pointer imageIO = dynamic_cast<GDALImageIO*>(m_ImageIO.GetPointer());
 
@@ -477,6 +477,7 @@ ImageFileWriter<TInputImage>
       }
 
     imageIO->SetOptions(m_FilenameHelper->GetgdalCreationOptions());
+    imageIO->SetWriteRPCTags(m_FilenameHelper->GetWriteRPCTags());
     }