Video-sampler

- added summary creation from sampled frames

- keyword yt-dlp extraction

- added yt-dlp integration
- extra yt-dlp options are supported

- added blur gating

- adding CLIP-based gating for sampling
- added docker build image
- fixed some bugs in requirements and setup scripts
- adding gif creation from sampled frames
- added a notebook in `notebooks` to show the distribution shift of the sampled frames
- added some basic tests (really basic)
- added a short explanation and usage of guided sampling in README.md.
- added grid hash sampling

- fixed a major bug in the hashing buffer
- added entropy and gzip methods for the sliding top-k buffer
- improved build process