Summary:
add align feature and position properties (center, left, right, top, bottom)
efl_ui_popup_position_set should be seperated from evas_object_move
since evas_object_move can be called internally.
Test Plan: 1. run elementary_test -to efluipopup
Reviewers: Jaehyun_Cho, jpeg, cedric, thiepha, Blackmole, woohyun
Reviewed By: Jaehyun_Cho
Differential Revision: https://phab.enlightenment.org/D5105