Use OUTLINETEXTMETRIC::otmpFamilyName to get wxFont face name from MSW.

Use OUTLINETEXTMETRIC::otmpFamilyName to get wxFont face name from MSW.

In spite of the name, we need to use otmpFamilyName member of
OUTLINETEXTMETRIC struct and not otmpFaceName to get the font face name: the
latter may contain (locale-dependent, so the changes of r62708 didn't work for
non-English versions of Windows) "Italic" or "Bold" suffix while the former
does not and is what we want.

This should really fix the unit test failures, even in French locale.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62732 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775