Optimize TableView by using ImageProvider

This optimizes tableview as we were not able to utilize the
image atlas efficiently without it.

Change-Id: I3cce48b7557d843fb057cc1597dc4363c35bdef8
Reviewed-by: Caroline Chao <caroline.chao@digia.com>
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>