Suggestion: Command line arguments

[eldritchT]

I suggest to add CLI arguments like this:

$ python ntscQT.py -i .\normalvideo.mp4 -o .\VHS\ntscvideo.mp4 -p preset.json

-i (--input) is a normal path to video or link to image
-o (--output) is an output video path
-p (--preset) is a preset file path

I think it would be make possible to make ntscQT termux-compatible and faster (due there is no need to draw preview frames).
I will even try to turn it into a Google Colab notebook (like online Blender renderer)