1.3. Add EUCC certificates scraping and integration

**Description**
Add EUCC processing, by Tadeáš K. (this should be merged, tested, and potentially improved)

**Details for underlying issues and ideas for implementation:**
There is a [PR #552](https://github.com/crocs-muni/sec-certs/pull/552) that adds EUCC processing  (this should be merged, tested, and potentially improved).

**Additional context**
CCAT project