Create role_user_assignment and role_team_assignment modules

[Tompage1994]

Please confirm the following

• I agree to follow this project's code of conduct.
• I have checked the current issues for duplicates.
• I understand that ansible-rulebook is open source software provided for free and that I might not receive a timely response.

Feature type

New Feature

Feature Summary

At present there is no way to manage the role_user_assignment and role_team_assignment endpoints on the EDA Controller using this collection. The same modules exist in ansible.platform (for the gateway parts) and ansible.controller (for the controller parts) but not in ansible.eda

Steps to reproduce

In the same way that you can with the other modules I expect to be able to use code like:

- ansible.eda.role_user_assignment:
        user: testuser1
        role_definition: Organization Eda Credential Admin
        object_id: 3
        state: present

Current results

N/A missing feature which can't be managed through the ansible.platform collection module

Suggested feature result

Work in the same way as ansible.controller.role_user_assignment and ansible.controller.role_team_assignment.

Additional information

I have already put together some code for this and I reckon I'm at least 90% of the way there. I'll raise a PR for this immediately