Summary: elm_genlist_first_item_get(), elm_genlist_last_item_get(), elm_genlist_item_prev_get(), elm_genlist_item_next_get() should return the next filtered item if filter is applied on the genlist.
Test Plan: test_genlist.c => Genlist Filter demo updated
Reviewers: shilpasingh, cedric, SanghyeonLee
Subscribers: divyesh, rajeshps
Differential Revision: https://phab.enlightenment.org/D3263
Signed-off-by: Cedric BAIL <cedric@osg.samsung.com>