* Allow pausing alerts from provisioning
* Update swagger
* Add IsPaused to provision export endpoints
* Add pause field in sample.yml
* Add exception for reset state in first loop iteration of scheduler if rule is paused
* Update provision definition and swagger docs
* Fix provisioning export tests
* Suggestion: Simplify if condition
* Add more context to a comment
This adds provisioning endpoints for downloading alert rules and alert rule groups in a
format that is compatible with file provisioning. Each endpoint supports both json and
yaml response types via Accept header as well as a query parameter
download=true/false that will set Content-Disposition to recommend initiating a download
or inline display.
This also makes some package changes to keep structs with potential to drift closer
together. Eventually, other alerting file structs should also move into this new file
package, but the rest require some refactoring that is out of scope for this PR.