elm_calendar: Reorder few members of _Elm_Calendar_Smart_Data to reduce size
elm_calendar: Reorder few members of _Elm_Calendar_Smart_Data to reduce size

After reordered, sizeof(Elm_Calendar_Smart_Data) is little bit reduced
from 560 to 544 on 64bit system.

rvandegrift/elementary,tasn/elementary,FlorentRevest/Elementary,tasn/elementary,rvandegrift/elementary,tasn/elementary,rvandegrift/elementary,tasn/elementary,rvandegrift/elementary,tasn/elementary,FlorentRevest/Elementary,FlorentRevest/Elementary,FlorentRevest/Elementary