[Feature]: Add date of event being archived

[osintalex]

What change would you like to see?

I would like to be able to add a metadata field when archiving an event. For instance, suppose I am archiving a twitter post about Biden's inauguration. I would like to be able to add metadata that this took place on January 20th, 2021. I would also like to be able to search for this later.

Context

I think this would be helpful when archiving historically significant events. It would really help for serving content to end users who will likely want to search for data within given time ranges. At the moment from what I can see, the only time metadata a crawl saves is the time of the crawl run.

For example, this model could get a field like: timeMetadata: Optional[datetime] = None. The UI could allow a user to add this when creating a crawl config and allow searching by this field when filtering past crawls.

Happy to work on this if there is support for the feature.