Add and use `replacedBy` and `supercedes` relations

[calconnect-ci]

In GitLab by @ribose-jeffreylau on Jan 27, 2020, 15:46

Target: systems with remarks containing "Replaced by", "Accepted instead of"

• gost-rus-cyrl-latn-16876-71-1983, replacedBy:gost-rus-cyrl-latn-7-79-2000
• gost-rus-cyrl-latn-7-79-2000, supercedes:gost-rus-cyrl-latn-16876-71-1983

Related: #38

[calconnect-ci]

In GitLab by @ribose-jeffreylau on Jan 27, 2020, 15:50

closed via commit 0300a733d9fdd2f7e3805b55420538d4476d6796