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##### SUMMARY
<!--- Explain the problem briefly below -->

`python-gitlab` library release a new version [v1.13.0](https://github.com/python-gitlab/python-gitlab/releases/tag/v1.13.0). User/Password authentication as been removed completely causing all Ansible GitLab module to fail... 

##### ISSUE TYPE
- Bug Report

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

gitlab_group
gitlab_deploy_key
gitlab_hook
gitlab_project
gitlab_project_variable
gitlab_runner
gitlab_user

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
All versions

changed = False
        
        if self.projectObject is None:
            project = self.createProject(namespace, {
                'name': project_name,
                'path': options['path'],
                'description': options['description'],
                'issues_enabled': options['issues_enabled'],
                'merge_requests_enabled': options['merge_requests_enabled'],
                'wiki_enabled': options['wiki_enabled'],
                'snippets_enabled': options['snippets_enabled'],
                'visibility': options['visibility'],
                'import_url': options['import_url']})
            changed = True
        else:
            changed, project = self.updateProject(self.projectObject, {
                'name': project_name,
                'description': options['description'],
                'issues_enabled': options['issues_enabled'],
                'merge_requests_enabled': options['merge_requests_enabled'],
                'wiki_enabled': options['wiki_enabled'],
                'snippets_enabled': options['snippets_enabled'],