[WIP] Add OpenShiftControlPlane v1alpha1 API

[JoelSpeed]

Related to openshift/enhancements#1479, this adds the API for the new OpenShiftControlPlane type that will be used to define how to bootstrap OpenShift clusters via Cluster API patterns.

This is part of an experiment and is yet to be proven, I will leave the PR as a draft until we are more confident in the approach we are building out.

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[openshift-ci]

Hello @JoelSpeed! Some important instructions when contributing to openshift/api:
API design plays an important part in the user experience of OpenShift and as such API PRs are subject to a high level of scrutiny to ensure they follow our best practices. If you haven't already done so, please review the OpenShift API Conventions and ensure that your proposed changes are compliant. Following these conventions will help expedite the api review process for your PR.

[JoelSpeed]

/approve cancel

I do not want this to be accidentally merged

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[JoelSpeed]

/test verify

[JoelSpeed]

/test verify

[openshift-merge-robot]

PR needs rebase.

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[openshift-bot]

Issues go stale after 90d of inactivity.

Mark the issue as fresh by commenting /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.
Exclude this issue from closing by commenting /lifecycle frozen.

If this issue is safe to close now please do so with /close.

/lifecycle stale

[openshift-ci]

@JoelSpeed: 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/e2e-aws-serial-techpreview	da79a0c	link	true	/test e2e-aws-serial-techpreview
ci/prow/e2e-aws-ovn-hypershift	da79a0c	link	true	/test e2e-aws-ovn-hypershift
ci/prow/e2e-aws-serial	da79a0c	link	true	/test e2e-aws-serial
ci/prow/e2e-aws-ovn	da79a0c	link	true	/test e2e-aws-ovn
ci/prow/e2e-aws-ovn-techpreview	da79a0c	link	true	/test e2e-aws-ovn-techpreview
ci/prow/e2e-upgrade-minor	da79a0c	link	true	/test e2e-upgrade-minor
ci/prow/e2e-upgrade	da79a0c	link	true	/test e2e-upgrade

Full PR test history. Your PR dashboard.

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[JoelSpeed]

Not going to pursue this right now