…54521)

## Summary

This PR updates the `All Rules Table` actions to use the new bulk API introduced in elastic#53543. More robust error reporting has also been added to let the user know exactly which operation has failed. Note that individual `update`/`delete` requests now also go through the bulk API as this simplifies the implementation and error handling.

Additional features:
* Adds toast error when failing to activate, deactivate or delete a rule (related elastic#54515)
* Extracted commonly used toast utility for better re-use
* Removes ability to delete `immutable` rules


##### Activate/Deactivate Before:
![bulk_activate_before](https://user-images.githubusercontent.com/2946766/72196245-0ea50300-33d4-11ea-8d49-5ebdb63db1a1.gif)
(Ignore failed requests from test env -- request count is important here)


##### Activate/Deactivate After:
![bulk_activate_after](https://user-images.githubusercontent.com/2946766/72196361-c0443400-33d4-11ea-9a42-11f66c64e925.gif)



##### Delete Before:
![bulk_delete_before](https://user-images.githubusercontent.com/2946766/72196249-149ae400-33d4-11ea-80fc-b2f7fb83245f.gif)
(Ignore failed requests from test env -- request count is important here)

##### Delete After:
![bulk_delete_after](https://user-images.githubusercontent.com/2946766/72196366-c803d880-33d4-11ea-90d8-f1917b18035f.gif)

### Checklist

Use ~~strikethroughs~~ to remove checklist items you don't feel are applicable to this PR.

- [x] This was checked for cross-browser compatibility, [including a check against IE11](https://github.com/elastic/kibana/blob/master/CONTRIBUTING.md#cross-browser-compatibility)
- [x] Any text added follows [EUI's writing guidelines](https://elastic.github.io/eui/#/guidelines/writing), uses sentence case text and includes [i18n support](https://github.com/elastic/kibana/blob/master/packages/kbn-i18n/README.md)
- [ ] ~[Documentation](https://github.com/elastic/kibana/blob/master/CONTRIBUTING.md#writing-documentation) was added for features that require explanation or tutorials~
- [x] [Unit or functional tests](https://github.com/elastic/kibana/blob/master/CONTRIBUTING.md#cross-browser-compatibility) were updated or added to match the most common scenarios
- [ ] ~This was checked for [keyboard-only and screenreader accessibility](https://developer.mozilla.org/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Accessibility#Accessibility_testing_checklist)~

### For maintainers

- [ ] ~This was checked for breaking API changes and was [labeled appropriately](https://github.com/elastic/kibana/blob/master/CONTRIBUTING.md#release-notes-process)~
- [ ] ~This includes a feature addition or change that requires a release note and was [labeled appropriately](https://github.com/elastic/kibana/blob/master/CONTRIBUTING.md#release-notes-process)~