fontselect: don't find fonts with PostScript outlines by full name

fontselect: don't find fonts with PostScript outlines by full name

Related to commit e00691e8096cc69e5651480155ebc61d9e079290:
it turns out that GDI (and hence VSFilter) does not check full names of
fonts that have PostScript outlines when searching for a font by name.

To summarize the resulting behavior:
  * Fonts with PostScript outlines can be found by family name
    and by PostScript name.
  * Fonts without PostScript outlines can be found by family name
    and by full name.