Deoldify Vapoursynth filter

[Selur]

copy&paste error:

this->addOptionIfNotDefault("vsDeoldifyDegrainStrength", "degrain_strength", options);
    this->addOptionIfNotDefault("vsDeOldifyDDFP16", "degrain_strength", options);

should be:

this->addOptionIfNotDefault("vsDeoldifyDegrainStrength", "degrain_strength", options);
    this->addOptionIfNotDefault("vsDeOldifyDDFP16", "enable_fp16", options);

will fix after work.