Deoldify Vapoursynth filter

[Dan64]

=> so if the files are all there, deoldify should not need to write anywhere under "Program Files" on normal installations.

 It is called cache because is a temporary store. If a network file stored in the cache is updated on the torch repository, the first time that the network is used by torch, the cache will be updated with the new version. This is not a frequent situation but in theory it could happen.

Dan