Evas text: fix RTL text ellipsis issues

Evas text: fix RTL text ellipsis issues

Summary:
Visual position of ellipsis item should be set according to
its bidi direction. But, by setting visual position in same way
as logical position, the end ellipsis could be put opposite side.
Also, start ellipsis must placed on left side of RTL text.
@fix T3187

Test Plan: Test an sample on T3187

Reviewers: tasn, herdsman, woohyun

Subscribers: cedric, jpeg, minudf

Maniphest Tasks: T3187

Differential Revision: https://phab.enlightenment.org/D3769

@tizen_fix

Change-Id: If78b6becb5059052ddae23f7dee39d91ddce38c7