Unified reference detection

Beanow December 22, 2019, 8:51pm 7

Added a first wave of PRs with building blocks in the core.

Cred Boosting

Topic		Replies	Views
Discourse Reference & Mention Detection Initiatives ✔️completed	1	1157	October 21, 2019
Discourse mirror revision Initiatives ✔️completed	3	1532	December 12, 2019
Sneak peek: SourceCred Discourse Plugin The CredSperiment	4	2227	August 19, 2019
Write the Initiatives Plugin Initiatives 🏗️in-progress	16	3061	February 29, 2020
Create Discourse plugin Initiatives ✔️completed	0	894	March 6, 2020