Create catalog-next

[jbrown-xentity]

User Story

In order to have a stable catalog-next to test against, data.gov admins wants a protected branch and infrastructure for another catalog to be deployed.

Acceptance Criteria

[ACs should be clearly demoable/verifiable whenever possible. Try specifying them using BDD.]

• GIVEN the next branch is created and protected
  [AND optionally another precondition]
  WHEN a user goes to catalog-next
  THEN the CKAN site is up
  AND the harvest extension (and others) are not installed.

Background

Related to Harvesting2.0

Security Considerations (required)

None

Sketch

We want to utilize current models where we can. Suggest implement a next branch, and a similar branch for ckanext-datagovteam such that the next branch in catalog is protected, requires reviews for merge, etc. We also want to deploy on next branch merges, and figure out how to separate that from main.
In this iteration we only need to do development for dev; stage and prod can be considered follow-up tickets (please create follow up tickets if not implemented).