Schema: investigate CAPEC field

[frasertweedale]

          Just out of curiosity. Is there a CAPEC field?

Originally posted by @hasufell in #157 (comment)

CAPEC = Common Attack Pattern Enumerations and Classifications

See also: https://capec.mitre.org/

[blackheaven]

Is there something left to do?

[frasertweedale]

AFAICT this is done. Closing it.