Add support for graphical consoles

[steveb]

When the ironic spec graphicalConsoles is set to "Enabled" the following occurs:

• a novncproxy container is added to the conductor pod
• a route is added for users to access novncproxy URLs
• conductor config is modified to enable graphical console drivers
• [vnc] config enables the kubernetes container_provider[1]

Depends-On: openstack-k8s-operators/openstack-operator#1633
Jira: OSPRH-20211
[1] https://review.opendev.org/c/openstack/ironic/+/962242

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• I have performed a self-review of my code and confirmed it passes tests
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  • ironic-operator-build-deploy-kuttl
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[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/3e6f4be009d34ecfbfd18d037f86dbf5

❌ openstack-k8s-operators-content-provider FAILURE in 9m 24s
⚠️ podified-multinode-ironic-deployment SKIPPED Skipped due to failed job openstack-k8s-operators-content-provider

[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/df1715ed20f64daabd4f1d348b436699

❌ openstack-k8s-operators-content-provider FAILURE in 9m 17s
⚠️ podified-multinode-ironic-deployment SKIPPED Skipped due to failed job openstack-k8s-operators-content-provider

[openshift-ci]

@steveb: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/functional	2f9267c	link	true	/test functional
ci/prow/precommit-check	2f9267c	link	true	/test precommit-check

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