Support extended keys pop-under for OpenGL systems

- Use wide character for wide aspect keyboard display
- For top 2 rows, pop extended characters wide underneath instead on top
- Get emoticons from /usr/palm/images instead of /usr/palm
- Remove image files, which were never installed from this component

Open-webOS-DCO-1.0-Signed-off-by: Roger Stringer <roger.stringer@lge.com>

Change-Id: Ie21107f98d60bb5546952291d2f9197a893078ec