* Fixes the issue when a font doesn't support all the glyphs of the script.
i.e a font validated for the CJK script may contain glyphs for the chinese language but not for the Japanese.
Uses the new IsCharacterSupportedByFont() method added to the font client.
Change-Id: I5f6e125298605d170de2d31f7ee7fc18585790f4 Signed-off-by: Victor Cebollada <v.cebollada@samsung.com>