Update find_calendar_items example
Update find_calendar_items example

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