hoversel: Enabled default mirroring in hoversel.

hoversel: Enabled default mirroring in hoversel.

Removed default disable automatic mirroring of hoversel.

Summary:
Removed below API call for hoversel, hover, box and button object
elm_widget_mirrored_automatic_set(obj, EINA_FALSE);

Modified theme of "elm/button/base/hoversel_vertical_entry/default" to remove console errors due to theme, and modified text.align to -1 as 'x' value to set auto align for Arabic text.
Modified example hoversel_example_01.c to illustrate mirroring functionality

@fix

Reviewers: Hermet, seoz, tasn

Subscribers: sachin.dev

Differential Revision: https://phab.enlightenment.org/D1910