JSON config for archery-manage (Fixes BUGZ-3905)

Main new functionality changes:

• support topology specification in the flexible JSON config, including grouping, static endpoints and info-services fetching
• add possibility to output the expanded JSON (e.g. with fetched data from info-services) to be used as a static endpoints input

As there is now more flexibility in JSON config, the filtering approach has been redesigned to support:

• vo-based filtering for non-ARC external sources (site-bdii)
• apply portscan/type filters to all endpoints (including statically defined)
• ability to apply on-fetch filters per-external source