Use english name to match font in windows platform

Use english name to match font in windows platform

In windows platform, simplified chinese envrionment, the default font
family name is "SimSun" which is not in the font list generated by
EnumFontFamiliesEx(), this will cause chinese font can't be displayed.

This patch will generate font's english name during font enumeration in
windows platform, and take font's english name into consideration in font
matching. The english name generation code is taken from Qt4.8

Change-Id: Ie939ec0c8c08c628a835c7a53fb22d0545626d9c
Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>