Ansible launcher: use sequence-uuid in shell scripts
Ansible launcher: use sequence-uuid in shell scripts

For the generated shell scripts which are named using UUID4, prepend a
sequence count to them to easily be able to tell the ordering of the
scripts when looking in '_zuul_ansible/scripts/'.  Keep the uuid to
avoid potential collisions in /tmp.

Change-Id: Id80bf5139ba1ce12c62945421d49c5e3cd8e2f48

gooddata/zuul,gooddata/zuul,gooddata/zuul,gooddata/zuul,gooddata/zuul