<!--- 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 -->
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 -->

if self._module.check_mode:
            return True
        hook = project.hooks.create(arguments)
        return hook
    '''
    @param hook Hook Object
    @param arguments Attributs of the hook
    '''
    def updateHook(self, hook, arguments):
        changed = False
        for arg_key, arg_value in arguments.items():
            if arguments[arg_key] is not None:
                if getattr(hook, arg_key) != arguments[arg_key]:
                    setattr(hook, arg_key, arguments[arg_key])
                    changed = True
        return (changed, hook)
    '''
    @param project Project object
    @param hook_url Url to call on event
    '''
    def findHook(self, project, hook_url):