- Update to 67:
* since most plugins don't need api 4.1 you now have to define
VS_USE_LATEST_API or VS_USE_API_41 to actually
* require it
* fixed a minor performance issue
* all suitable constants are now IntEnum type instead of IntFlag
when compiled with cython 3.x
* fixed constants in vapoursynth module not being correctly
coerced to int type when used passed to plugin
* functions due to cython 3.x changes
* vfw and avfs will now output YUV420P12 and YUV422P12 as P016
and P216 fourcc (16 bit) to make things more
* convenient
* fixed 19-24 bit audio output in vfw
* fixed handling of audio decoding errors in vfw
* fixed the reported plugin path being empty
* improved the portable install script