Stockfilm tutorial samples

Stockfilm supplies sample-image.png and sample-video.mp4 to follow the AI
restoration tutorial and inspect its results. This tutorial permission does
not grant production reuse rights. Production reuse requires ordinary
Stockfilm footage licensing: https://stockfilm.com/licensing

The wrapper code license does not apply to these samples or restored
derivatives of them. Keep this notice with the tutorial samples.

Sample source: compressed Harrisburg experiment input from the historical
Stockfilm comparison collection. Date/location labels come from filenames;
the sample is not presented as an untouched archival scan or licensed master.
