Allow external users to code review tesora-trove-dashboard
Allow external users to code review tesora-trove-dashboard

Upstream allows all 'Registered Users' to Code review changes.
It does this via the All-projects base class, so all repos have
this behavior.

We restrict code review to either "tesora developers" or
, for trove-dashboard, approved external users.

Change-Id: I7c754547e21fd01090bd7a45565f21a279963efb

Tesora/tesora-project-config,Tesora/tesora-project-config