Enabling FilmGrainGLSL causes crash

[Selur]

Either replace the dehalo.py with https://github.com/Selur/VapoursynthScri.../dehalo.py or edit the file and change:

so = so.vszip.Limiter() if hasattr(core,'vszip') so.std.Limiter()

to

so = so.vszip.Limiter() if hasattr(core,'vszip') else so.std.Limiter()

Cu Selur