The message announcing new ostree commit contains hash of the commit,
the ref it's for, but there is no information about where the repo
actually is.
This patch adds `repo_path` key into the message with URL of the repo
and `local_repo_path` with path to the repo on local filesystem.
Relates: https://pagure.io/pungi/issue/650
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>