##### 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
roles_path = opt_help.argparse.ArgumentParser(add_help=False)
        roles_path.add_argument('-p', '--roles-path', dest='roles_path', type=opt_help.unfrack_path(pathsep=True),
                                default=C.DEFAULT_ROLES_PATH, action=opt_help.PrependListAction,
                                help='The path to the directory containing your roles. The default is the first '
                                     'writable one configured via DEFAULT_ROLES_PATH: %s ' % default_roles_path)
        collections_path = opt_help.argparse.ArgumentParser(add_help=False)
        collections_path.add_argument('-p', '--collections-path', dest='collections_path', type=opt_help.unfrack_path(pathsep=True),
                                      default=AnsibleCollectionConfig.collection_paths,
                                      action=opt_help.PrependListAction,
                                      help="One or more directories to search for collections in addition "
                                      "to the default COLLECTIONS_PATHS. Separate multiple paths "
                                      "with '{0}'.".format(os.path.pathsep))
        cache_options = opt_help.argparse.ArgumentParser(add_help=False)
        cache_options.add_argument('--clear-response-cache', dest='clear_response_cache', action='store_true',
                                   default=False, help='Clear the existing server response cache.')
        cache_options.add_argument('--no-cache', dest='no_cache', action='store_true', default=False,
                                   help='Do not use the server response cache.')
        
        type_parser = self.parser.add_subparsers(metavar='TYPE', dest='type')
        type_parser.required = True
        
        collection = type_parser.add_parser('collection', help='Manage an Ansible Galaxy collection.')
        collection_parser = collection.add_subparsers(metavar='COLLECTION_ACTION', dest='action')
        collection_parser.required = True
        self.add_download_options(collection_parser, parents=[common, cache_options])
        self.add_init_options(collection_parser, parents=[common, force])
        self.add_build_options(collection_parser, parents=[common, force])
        self.add_publish_options(collection_parser, parents=[common])
        self.add_install_options(collection_parser, parents=[common, force, cache_options])
        self.add_list_options(collection_parser, parents=[common, collections_path])