[Requirement]Pulsar manager supports normal users to access

Currently, the pulsar admin can access the pulsar manager to manage the Pulsar clusters. However, normal users can not access it. I think the pulsar manager should support it. For example. The users have below operations on the pulsar manager.
1. Users request to create a tenant, namespace, and topic(Need admin to approve)
2. Users request the permission for the namespace( e.g produce, consume)(Need admin to approve)
3. Users request the quota for the namespace(Need admin to approve)
4. Users request to view the topic that users have permission to access
5. Users request to view the real-time traffic and historical traffic for topics