<!--- Verify first that your feature was not already discussed on GitHub -->
<!--- Complete *all* sections as described, this form is processed automatically -->

##### SUMMARY
<!--- Describe the new feature/improvement briefly below -->
Atm, there is no way to put the server in rescue mode

##### ISSUE TYPE
- Feature Idea

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

##### ADDITIONAL INFORMATION
<!--- Describe how the feature would be used, why it is needed and what it would solve -->
Atm, Since I can use the hetzner api, I'm using the following code to put it into rescue:
<!--- Paste example playbooks or commands between quotes below -->
```yaml
    - name: Enable rescue
      uri:
        url: "https://api.hetzner.cloud/v1/servers/{{ item }}/actions/enable_rescue"
        method: POST
        status_code: 201
        body_format: json
        body:
          type: "linux64"
          ssh_keys: [341997]
        headers:
          Content-Type: "application/json"
          Authorization: "Bearer {{ hostvars['localhost']['hetzner_api_token'] }}"
      with_items:
        - "{{ server_id }}"
```

<!--- HINT: You can also paste gist.github.com links for larger files -->

type: str
    location:
        description:
            - Location of Server.
            - Required if no I(datacenter) is given and server does not exists.
        type: str
    datacenter:
        description:
            - Datacenter of Server.
            - Required of no I(location) is given and server does not exists.
        type: str
    backups:
        description:
            - Enable or disable Backups for the given Server.
        type: bool
        default: no
    upgrade_disk:
        description:
            - Resize the disk size, when resizing a server.
            - If you want to downgrade the server later, this value should be False.
        type: bool
        default: no
    force_upgrade:
        description:
            - Force the upgrade of the server.
            - Power off the server if it is running on upgrade.
        type: bool
        default: no
    user_data:
        description: