* w32font.c (w32font_open): Handle size, height and pixel_size better.

* w32font.c (w32font_open): Handle size, height and pixel_size better.
(w32font_draw): Use options.
(w32_enumfont_pattern_entity): Set size to 0 for scalable fonts.
Fix detection of truetype fonts.
(registry_to_w32_charset): Handle charsets other than iso8859-1
expressed as lisp symbols.
(w32_registry): Express charset as lisp symbol.
(fill_in_logfont): Reverse pixel and point height logic.
Don't set width here. Set quality to default.

* w32font.c: New file for w32 font backend.