[JENKINS-57816] Self-Promotion Condition feature with Pipeline Compatibility

[dernDren161]

To show the compatibility of Self promotion with the pipelines.
Please go through this documentation to know more about the PR and my relevant questions.

See JENKINS-57816.

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• Test automation, if relevant. We expect autotests for all new features or complex bugfixes
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CC

@oleg-nenashev @MadsNielsen @jonbrohauge @bicschneider

[oleg-nenashev]

I am not sure what is it. In https://issues.jenkins-ci.org/browse/JENKINS-57637 and the discussions over past weeks we agreed that you refactor the extension points, But here you create new ones instead of doing that.

[oleg-nenashev]

There is no need in separate extension point. The existing ones should be refactored as we agreed before