##### 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
return C.COLLECTIONS_PATHS[0]
    def _parse_requirements_file(self, requirements_file, allow_old_format=True, artifacts_manager=None):
        """
        Parses an Ansible requirement.yml file and returns all the roles and/or collections defined in it. There are 2
        requirements file format:
            # v1 (roles only)
            - src: The source of the role, required if include is not set. Can be Galaxy role name, URL to a SCM repo or tarball.
              name: Downloads the role to the specified name, defaults to Galaxy name from Galaxy or name of repo if src is a URL.
              scm: If src is a URL, specify the SCM. Only git or hd are supported and defaults ot git.
              version: The version of the role to download. Can also be tag, commit, or branch name and defaults to master.
              include: Path to additional requirements.yml files.
            # v2 (roles and collections)
            ---
            roles:
            # Same as v1 format just under the roles key
            collections:
            - namespace.collection
            - name: namespace.collection
              version: version identifier, multiple identifiers are separated by ','
              source: the URL or a predefined source name that relates to C.GALAXY_SERVER_LIST
              type: git|file|url|galaxy
        :param requirements_file: The path to the requirements file.
        :param allow_old_format: Will fail if a v1 requirements file is found and this is set to False.
        :param artifacts_manager: Artifacts manager.
        :return: a dict containing roles and collections to found in the requirements file.
        """