* CLDC-3743: Allow coordinators to manage schemes for recently absorbed organisations
* Fix status calculation for locations
* Avoid errors with merged stock owners
* Adjust when to hide org field in scheme creation
* Don't show activation buttons for schemes at merged orgs
* Update hint message about created locations, and restrict location creation to relevant org statuses
* Remove extra whitespace
* Fix references to scheme organisation
* Add delete confirmation page
* Allow deleting location
* Add delete location button and update policy
* Add delete button to CYA
* Update location policy
* Do not display deleted locationa as an option
* Move delete button into the button group
* Add informative text for locations that have logs
* Refactor query
* CLDC-2478 Allow deleting scheme (#2286
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* Add delete confirmation page
* Allow deleting scheme
* Add delete scheme button and update policy
* Add delete button to CYA
* Update scheme policy
* Do not display deleted schemes as an option
* Add informative text for schemesrbe that have logs
* Refactor query
* Update tests
* Add feature toggle
* Refactor guidance to allow both top and bottom guidance at the same time
* Update guidance content, add scheme changes page
* update test
* remove full stop
* Update content, add back button
* feat: allow data coordinators to create, edit and view stock owners' schemes
* feat: only show data coordinators their org and stock owners in scheme owner select, update location policy
* feat: update some tests
* feat: update tests
* feat: use zero? where appropriate and lint
* feat: update tests
* refactor: lint
* feat: use helper for answer options
* Display active status is location/scheme deactivation is in more than 6 months
* Override existing location deactivation period with new deactivation
* Override existing scheme deactivation period with new deactivation
* add reactivate to policy
* Change status tag method
* Update instance double in test
* Update deactivates_in_a_long_time? method
* Uncoment a test
# Context
- https://digital.dclg.gov.uk/jira/browse/CLDC-1732
- data providers are given read-only able access to schemes and locations
# Changes
- introduce `pundit` policies to schemes and locations. the old scope mechanism has been removed
- apply policies at view level so hide write access based functionality from data providers