Automatically extract Date tags

It would be convenient to label automatically resources according to their "creation date".
If a resource type carries date-metadata, it must be extracted.
E.g. for images, we should extract date from EXIF-metadata.
For the rest of resources, "first discovered" attribute must be used (see ARK-Builders/arklib#66).

Date must be split into orthogonal tags, e.g. "Jan 3, 2022" would result in tags "year:2022, month:january, day:3, day:monday".
All auto-derived tags (we might have other kinds in the future, e.g. geo-based) must be displayed distinctly from manual tags.

This feature should be configurable (ideally, on per-folder basis, but in the beginning just in Settings screen ARK-Builders/ARK-Navigator#77).
A user should be able to finely-tune which tags she needs and which not, e.g. user might be interested only in months or years and not days of week.