* [AAE-5021] Add listPeople method to PeopleContentService
* lint
* Replace Person with EcmUserModel
* Update imports to @alfresco/adf-core
* Change to const + lint
* Add ability to check if the user is an ACS_ADMIN - not part of JTW token
* Make get user api call only once
* Add unit tests
* Add documentation
* Fix comments
* Exclude flaky tests, dependent on another test
* Fix unit test
* Fix comments
* Update documentation