Summary:
Size and align calculation in Efl.Ui.Popup was advanced using group calculate,
so Efl.Ui.Popup.Anchor apply it also.
Test Plan: elementary_test -to efl.ui.popup.anchor
Reviewers: Jaehyun_Cho, herb, jpeg, woohyun, cedric
Reviewed By: Jaehyun_Cho
Differential Revision: https://phab.enlightenment.org/D5655