This PR adds _Role Based Access-Control_ to the Alerting framework & Actions feature using Kibana Feature Controls, addressing most of the Meta issue: https://github.com/elastic/kibana/issues/43994
This also closes https://github.com/elastic/kibana/issues/62438
This PR includes the following:
1. Adds `alerting` specific Security Actions (not to be confused with Alerting Actions) to the `security` plugin which allows us to assign alerting specific privileges to users of other plugins using the `features` plugin.
2. Removes the security wrapper from the savedObjectsClient in AlertsClient and instead plugs in the new AlertsAuthorization which performs the privilege checks on each api call made to the AlertsClient.
3. Adds privileges in each plugin that is already using the Alerting Framework which mirror (as closely as possible) the existing api-level tag-based privileges and plugs them into the AlertsClient.
4. Adds feature granted privileges arounds Actions (by relying on Saved Object privileges under the hood) and plugs them into the ActionsClient
5. Removes the legacy api-level tag-based privilege system from both the Alerts and Action HTTP APIs
* Implemented actions server API for supporting preconfigured connectors defined in kibana.yaml
* Fixed type check
* Fixed due to comments and extended functional tests
* Fixed tests and renamed connectors
* fixed jest tests
* Fixed type checks
* Fixed failing alert save
* Fixed alert client tests
* fixed type checks
* Fixed language check error
* Fixed jest tests
* Added missing comments and docs
* fixed due to comments
* Fixed json config for preconfigured
* fixed type check, reverted config
* config experiment with json stringify
* revert experiment
* Removed the spaces from connector names in config
* Disable actions client when ESO using generated key
* Add test for getActionsClientWithRequest
* Add other part to plugin.test.ts
* Cleanup tests a bit
* Cleanup tests
* plugin.test.ts cleanup
* Add warning logs on setup
Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>
