Deoldify Vapoursynth filter

[Selur]

Setting to a value less than one makes it default to the number of hardware threads.

source: https://amusementclub.github.io/doc3/pyt...um_threads

I'm going to the rename the github project "vs-deoldify" in "vs-havc" and to rename the package "vsdeoldify" in "vshavc", in the next days I will provide you the preview of "vshavc" package

I'll adjust Hybrid accordingly when the time comes.

Cu Selur