<!--- Verify first that your feature was not already discussed on GitHub -->
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##### SUMMARY
<!--- Describe the new feature/improvement briefly below -->
In gitlab_hook module doesn't have parameter "Comment" which is necessary for my DevOps flow and generally very useful for triggering a job. Without this option, I and a lot of people cannot use this module fully. 

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
https://docs.ansible.com/ansible/latest/modules/gitlab_hook_module.html

##### ADDITIONAL INFORMATION
<!--- Describe how the feature would be used, why it is needed and what it would solve -->
1. I use the newest version of ansible.
2. It's about this option in gitlab:
[![comments.png](https://i.postimg.cc/C5tkJdJ7/comments.png)](https://postimg.cc/sGYMgjkG)
<!--- Paste example playbooks or commands between quotes below -->
```yaml

```

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

author:
  - Marcus Watkins (@marwatk)
  - Guillaume Martinez (@Lunik)
requirements:
  - python >= 2.7
  - python-gitlab python module
extends_documentation_fragment:
    - auth_basic
options:
  api_token:
    description:
      - GitLab token for logging in.
    version_added: "2.8"
    type: str
    aliases:
      - private_token
      - access_token
  project:
    description:
      - Id or Full path of the project in the form of group/name
    required: true
    type: str
  hook_url:
    description:
      - The url that you want GitLab to post to, this is used as the primary key for updates and deletion.
    required: true
    type: str
  state:
    description:
      - When C(present) the hook will be updated to match the input or created if it doesn't exist. When C(absent) it will be deleted if it exists.