[evas_gl] evas : save the orient value when doing image_data_get()

[evas_gl] evas : save the orient value when doing image_data_get()

    1. evas_object_orient_set(image1, 90)
    2. buffer = evas_object_image_data_get(image1);
    3. evas_object_image_data_set(image2, buffer);

    we need an orient value of image1 for image2,
    so we keep orient value of image1 at image_data_get()

Change-Id: I9daab94ba9de55690bf70bf8172b0593af21a3de