Change Details

For instance, `swh graph --version` should return the version of swh.graph, etc. This should be pretty easy using https://click.palletsprojects.com/en/7.x/api/?highlight=version_option#click.version_option + the version from vcversioner

For instance, `swh graph --version` should return the version of swh.graph, etc. This should be pretty easy using https://click.palletsprojects.com/en/7.x/api/?highlight=version_option#click.version_option + the version from importlib.metadata

For instance, `swh graph --version` should return the version of swh.graph, etc. This should be pretty easy using https://click.palletsprojects.com/en/7.x/api/?highlight=version_option#click.version_option + the version from vcversionerimportlib.metadata