Hide sync_folder_items_result::parse
Hide sync_folder_items_result::parse

Wrap declaration and definition of sync_folder_items_result::parse(...)
into a EWS_DOXYGEN_SHOULD_SKIP_THIS check to hide it in doxygen docu.

otris/ews-cpp,bkircher/ews-cpp,bkircher/ews-cpp,m-Schlitzer/ews-cpp,m-Schlitzer/ews-cpp,bkircher/ews-cpp,otris/ews-cpp,m-Schlitzer/ews-cpp,otris/ews-cpp,otris/ews-cpp