clone-bundle: rename the methods and wireprotole command
The current naming is very clone centric, since then, the url scheme was moved
to a more generic wording to make room for other use-cases (e.g. pull bundles).
We apply the same logic to the internal API and, very important prior to the
release, to the wire protocol command.
# So GitLab doesn't think we're using tons of Perl
*.t -linguist-detectable