#9222 non-western locale and windows font problem (PATCH)

Hi Guys,

I've been investigating #9211. It seems that the windows font API
functions expect font names in the native encoding rather than UTF-8.
At the moment we pass in UTF-8 and so windows never finds the required
font. The attached patch fixes this.

Could someone just check that this is OK? In particular, is the use of
XAP_EncodingManager::get_instance() correct?

Best wishes,

R.