Avisynth srestore & filter order

[serg]

dev_2021.01.21-17262 finally "SpotRemover" error is gone (oggenc still shows an error on the first launch).
However there are some weird things happens in Avisynth and Vapoursynth.

1. Avisynth:
- SelectRangeEvery (ie. 5,3,1) gives reduced frame count (as it suppose to be), but fps shows 359.64 fps (attempt to adjust it using Restore or AdjustFrameRate read below)
- custom filter order is not respected (trying to re-order the following filters SelectRangeEvery  before  AdjustFrameRate and Restore). SelectRangeEvery still takes over any of them.
2.Vapoursynth:
- SelectRangeEvery (ie. 5,3,1) doesn't change frame count and fps!!!, however preview shows nice result!!!
- custom filter order SelectRangeEvery  before  Restore is respected
- custom filter order SelectRangeEvery  before  AdjustFrameRate is not respected.

For test I used the video I sent you before "hotel.avi" (if you don't have it anymore : https://drive.google.com/file/d/19uD5mil...sp=sharing)
Steps to reproduce:
- QTGMC de-interlacing buttom field first ( using telecine doesn't change the issues)
- SelectRangeEvery (ie. 5,3,1) - notice FPS
- change filter order, so AdjustFrameRate and Restore goes after SelectRangeEvery
- try to use AdjustFrameRate/Restore