Description
(02) ansible.platform.user module is missing an option to create an Auditor user (module has is_superuser option but missing is_auditor)

Steps to Reproduce

Actual Behavior
Error generated, user not modified.

Expected Behavior
Documentation provided: 

Auditor used to be an attribute on the user model but its not granted through RBAC. Because of this you can't make a user an Auditor directly through the ansible.platform.user module. Instead you need to create the user with ansible.platform.user and then make a second call to ansible.platform:    - name: Create timmy
      ansible.platform.user:
        username: timmy
        state: present
      register: timmy

    - name: Make timmy an auditor
      ansible.platform.role_user_assignment:
        user: "{{ timmy.id }}"
        role_definition: "Platform Auditor"