* create AlertGroupKey structure
* update PrometheusSrv.
- extract creation of RuleGroup to a separate method. Use group key for grouping
* update RuleSrv
- update calculateChanges to use groupKey
- authorize to use groupkey
* Template service
* Add GET routes and implement them
* Generate mock for persist layer
* Unit tests for reading templates
* Set up composition root and get integration tests working
* Fix prealloc issue
* Extract setup boilerplate
* Update AuthorizationTest
* Rebase and resolve
* Fix linter error
* Base-line API for provisioning notification policies
* Wire API up, some simple tests
* Return provenance status through API
* Fix missing call
* Transactions
* Clarity in package dependencies
* Unify receivers in definitions
* Fix issue introduced by receiver change
* Drop unused internal test implementation
* FGAC hooks for provisioning routes
* Polish, swap names
* Asserting on number of exposed routes
* Don't bubble up updated object
* Integrate with new concurrency token feature in store
* Back out duplicated changes
* Remove redundant tests
* Regenerate and create unit tests for API layer
* Integration tests for auth
* Address linter errors
* Put route behind toggle
* Use alternative store API and fix feature toggle in tests
* Fixes, polish
* Fix whitespace
* Re-kick drone
* Rename services to provisioning
* verify that the user has access to all data sources used by the rule that needs to be deleted from the group
* if a user is not authorized to access the rule, the rule is removed from the list to delete
update method getEvaluatorForAlertRule to accept permissions evaluator and exit on the first negative result, which is more effective than returning an evaluator that in fact is a bunch of slices.