Updated openstack/openstack
Project: openstack/cliff  556f564c877a60bc5df2eb72523754278fa34306

Expose load_commands publicly

This will allow us to load commands from other entrypoints into the
list. It brings together the two CommandManager overrides in tests into
one place in utils to simply usage.

Change-Id: Ib463eff98c2ac04488ce4a8875cf3e1b7779b27c