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##### SUMMARY
<!--- Explain the problem briefly below -->
I've talked about this with @gundalow in https://github.com/theforeman/foreman-ansible-modules/pull/591#issuecomment-561712408 but it seems to be forgotten.

`apt_repo` is for managing ALT Linux repositories, unlike `apt_repository` which is for Debian repositories. As we aim to only support Debian and Red Hat family OSes in "base", `apt_repo` should be moved to a collection.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
apt_repo

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below

```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```paste below

```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->


##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->

<!--- Paste example playbooks or commands between quotes below -->
```yaml

```

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##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->


##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->

<!--- Paste verbatim command output between quotes -->
```paste below

```

module = AnsibleModule(
        argument_spec=dict(
            repo=dict(type='str', required=True),
            state=dict(type='str', default='present', choices=['absent', 'present']),
            remove_others=dict(type='bool', default=False),
            update=dict(type='bool', default=False),
        ),
    )
    if not os.path.exists(APT_REPO_PATH):
        module.fail_json(msg='cannot find /usr/bin/apt-repo')
    params = module.params
    repo = params['repo']
    state = params['state']
    old_repositories = apt_repo(module)
    if state == 'present':
        if params['remove_others']:
            set_repo(module, repo)
        else:
            add_repo(module, repo)
    elif state == 'absent':
        rm_repo(module, repo)
    if params['update']:
        update(module)
    new_repositories = apt_repo(module)
    changed = old_repositories != new_repositories
    module.exit_json(changed=changed, repo=repo, state=state)
if __name__ == '__main__':
    main()