evas proxy: make it work for File_Save.save
Summary:
File_Save.save does not work for proxy object from following commit.
c53f152 evas: Make save() work on snapshots
Test Plan:
1. Add an image object and set source object.
evas_object_image_source_set(obj, source);
2. Save the object as a file when you need.
evas_object_image_save(obj, "./file_name.png", NULL, NULL);
Reviewers: cedric, Hermet, jsuya
Reviewed By: Hermet
Subscribers: zmike, subodh6129, #reviewers, #committers
Tags: #efl
Differential Revision: https://phab.enlightenment.org/D10629