Type1 GX font support: a PostScript Type1 font without eexec-encryption

TektonPlus (mentioned in fontforge issue 4190) was a sfnt-wrapped PS Type1 font, which was distributed as a part of TrueType GX kit in Apple Developer CD-ROM around 1995-1998. If I pick its PostScript part from its TYP1 table, it works on the recent macOS (tested on Monterey), Adobe Distiller 2017 and AFDKO. Also fontforge can load it, although its conversion to other formats cause some issues. Thus it is fair to assume that it has no serious bug. But, FreeType cannot load it. The error "current token is `}' which is self-delimiting but invalid at this point" interrupts the parsing of the type1 driver.

The claimed part is here:

/Subrs 1106 array
dup 0 15 -| }^FN^A??<90><85>@1;<9B><86> |
dup 1 9 -| }^FN^D^U^T^Rc |

It seems that '}' is a part of the CharString data to be decrypted, but the FreeType driver takes it as a PostScript token. I will consider a patch to include the CharString data. If this skipping was decided to prevent some issues, please let me know.