Deoldify Vapoursynth filter

[Dan64]

“Ref Frame Dir”  can be used by any DeepEx method, while “Reference frame only” only when the DeepEx method = 0 (HAVC).
In the other methods “Ref Frame Dir”  is used as "input" dir, only when method = 0, “Ref Frame Dir” can be used as "output" dir.

Dan