Fix cursor position for ligatures and group of glyphs.
Fix cursor position for ligatures and group of glyphs.

* Fix an issue with the Devanagari script.

Change-Id: I463d2171add2829f14039d8b2ac5bd68bafe151e
Signed-off-by: Victor Cebollada <bd4ca07245b7f4eb2d3ace02513dff6e050d7f4b@samsung.com>

dalihub/dali-toolkit,dalihub/dali-toolkit,dalihub/dali-toolkit,dalihub/dali-toolkit