Type 1 glyph names: Do not use an array of pointers for winansi glyph…

… names

Similar to ps_standard_encoding array, use a string pool and lookup
indices for the winansi glyph names to reduce .data size. As
ps_encoding and winansi share mostly the same names, the perl script
has been modified to merge the symbols into the one string pool and
generate separate lookup indices for ps_encoding and winansi.