Add this resource's templates dir to template paths

def register_template_directory(kb_app: kb,
                                sphinx_app: Sphinx,
                                sphinx_env: BuildEnvironment,
                                docnames=List[str],
                                ):
    """ Add this resource's templates dir to template paths """

    template_bridge = sphinx_app.builder.templates

    actions = ResourceAction.get_callbacks(kb_app)

    for action in actions:
        f = os.path.dirname(inspect.getfile(action))
        template_bridge.loaders.append(SphinxFileSystemLoader(f))