Add RoleHierarchyAuthorizationManager

[jzheaux]

To replace RoleHierarchyVoter

[evgeniycheban]

I'd like to take this.

[evgeniycheban]

@jzheaux I think instead of adding a new AuthorizationManager we can add RoleHierarchy field to AuthorityAuthorizationManager that defaults to NullRoleHierarchy along with setter method to override.