##### SUMMARY

When I run `ansible-galaxy [type] init`, I would like to be able to use my own configured 'skeleton' to init that content.

For Ansible roles, when running `ansible-galaxy role init myrole`, I can configure a [`GALAXY_ROLE_SKELETON`](https://docs.ansible.com/ansible/latest/reference_appendices/config.html#galaxy-role-skeleton) in my `ansible.cfg`, and the init command will use that skeleton as the source for the new role.

For Ansible collections, currently there's a bug (https://github.com/ansible/ansible/issues/66255) that causes collections to use that skeleton if its set (which can lead to some confusion)—but once that bug's fixed, there's no way to specify a skeleton for a collection.

So this feature request is to add a new configuration option `GALAXY_COLLECTION_SKELETON` (environment variable `ANSIBLE_GALAXY_COLLECTION_SKELETON`) which allows a collection skeleton to be specified.

Note: the docs for `GALAXY_ROLE_SKELETON` currently state:

> Role or collection skeleton directory to use as a template for the `init` action in `ansible-galaxy`, same as `--role-skeleton`.

Therefore that would need adjusting too, if the previously mentioned bug doesn't fix that.

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME

ansible-galaxy init

##### ADDITIONAL INFORMATION

N/A
''' create an options parser for bin/ansible '''
        super(GalaxyCLI, self).init_parser(
            desc="Perform various Role and Collection related operations.",
        )
        
        common = opt_help.argparse.ArgumentParser(add_help=False)
        common.add_argument('-s', '--server', dest='api_server', help='The Galaxy API server URL')
        common.add_argument('--token', '--api-key', dest='api_key',
                            help='The Ansible Galaxy API key which can be found at '
                                 'https://galaxy.ansible.com/me/preferences.')
        common.add_argument('-c', '--ignore-certs', action='store_true', dest='ignore_certs',
                            default=C.GALAXY_IGNORE_CERTS, help='Ignore SSL certificate validation errors.')
        opt_help.add_verbosity_options(common)
        force = opt_help.argparse.ArgumentParser(add_help=False)
        force.add_argument('-f', '--force', dest='force', action='store_true', default=False,
                           help='Force overwriting an existing role or collection')
        github = opt_help.argparse.ArgumentParser(add_help=False)
        github.add_argument('github_user', help='GitHub username')
        github.add_argument('github_repo', help='GitHub repository')
        offline = opt_help.argparse.ArgumentParser(add_help=False)
        offline.add_argument('--offline', dest='offline', default=False, action='store_true',
                             help="Don't query the galaxy API when creating roles")
        default_roles_path = C.config.get_configuration_definition('DEFAULT_ROLES_PATH').get('default', '')