Add Modalities tags
Add "image", "audio" and "text". Later we can think about adding "tabular" (?) or more exotic ones like

TODO
- [x] add to hub-cache
- [x] tests
Add Modalities tags: Add "image", "audio" and "text". Later we can think about adding "tabular" (?) or more exotic ones like

TODO
- [x] add to hub-cache
- [x] tests