(x_to_w32_color): Fix argument to alloca.

(x_to_w32_color): Fix argument to alloca.
(w32_load_system_font): Don't believe what GetLanguageFontInfo
says; query codepage info directly to determine if font is double
byte.
(x_to_w32_charset): Handle private format for unknown charsets.
Handle wildcards in charset spec, by ignoring them.
(w32_codepage_for_font): Fix argument to alloca.  Don't remove
"*-" prefix from charset.
(x_to_w32_font): Enlarge remainder array for safety.  Specifically
handle the truncated font spec form constructed by font_list_1, so
that we correctly identify the charset fields.  Don't remove "*-"
prefix from charset.
(w32_list_synthesized_fonts): Fix argument to alloca.