add basic zuul jobs

[SeanMooney]

This change adds 2 new zuul jobs
first we leaverge the common zuul kuttl job that is designed
to run kuttl form in tree. to enable that i have ported
the webhook install fix form nova-operator

second the nova-operator-tempest-multinode job
is used as a base for a placemnet version to provide tempest
coverage on placement operator changes.

[openshift-ci]

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[SeanMooney]

i think we need to first add the noop job and then this to make speculative execution work so ill do that now in a separate pr.

[softwarefactory-project-zuul]

Zuul encountered a syntax error while parsing its
configuration in the repo openstack-k8s-operators/placement-operator on branch main. The
problem was:

Configuration item has more than one key. Each zuul.yaml
configuration file must be a list of dictionaries with a
single key, for example:

• job:
  name: foo

• project:
  name: bar

Ensure that every item in the list is a dictionary with only
one key (in this example, 'job' and 'project'). This error
may be caused by insufficient indentation of the keys under
the configuration item ('name' in this example).

The incorrect values are around:

job: placement-operator-tempest-multinode
parent: nova-operator-tempest-multinode
vars:
cifmw_test_operator_tempest_include_list: '''(?!.[.\bslow\b.*])(^tempest.api)''
...

[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/0d41a81e4c6548718b75398bb4348ad3

✔️ openstack-meta-content-provider SUCCESS in 55m 40s
❌ placement-operator-kuttl RETRY_LIMIT in 38m 10s
❌ placement-operator-tempest-multinode FAILURE in 23m 16s