- update to 2.13.1:
* New function `FT_Get_Default_Named_Instance` to get the
index of the default named instance of an OpenType Variation
Font. A new load flag `FT_LOAD_NO_SVG` to make FreeType ignore
glyphs in an 'SVG ' table.
* New function `FT_GlyphSlot_AdjustWeight` to adjust
the glyph weight either horizontally or vertically.
This is part of the `ftsynth.h` header file
* TrueType interpreter version 38 (also known as
'Infinality') has been deactivated; the value of
`TT_INTERPRETER_VERSION_38` is now the same as
`TT_INTERPRETER_VERSION_40`.
* Switching named instances on and off in Variation Fonts
was buggy if the design coordinates didn't change.
- drop enable-infinality-subpixel-hinting.patch (obsolete, infinality
is deactivated)

- update to 2.13.1:
* `ftbench` has a new command-line option `-a` to
apply design coordinates.
* `ftview` can now flip SVG rendering on and off using the
'Z' key.
* `ftmulti` it is now possible to toggle the fill
rule and overlap flag used for rendering glyphs using the 'F3'
and 'F4' keys, respectively. Toggling the anti-aliased mode
has been changed to the 'TAB' key.