Issue #3498419: Support PHP defined component lists

Closes #3498419

requested review from @balintbrews, @effulgentsia, @longwave, @wimleers, and @jessebaker

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• 9c29acb0...9a735e55 - 113 commits from branch project:0.x
• 7201a743 - Issue #3498419: Support PHP defined component lists

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added 13 commits

• 7201a743...39b8e966 - 10 commits from branch project:0.x
• b5d27c8b - Merge remote-tracking branch 'origin/0.x' into 3498419-library-confusingly-lists
• 4cd46668 - Revert openapi changes
• d0485411 - Add libraries to openapi yml, source plugins, component entity and controller

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• d9722c3b - Revert dictionary changes

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• 12180a27 - Remove elements library from openapi for now

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requested changes

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• 606cff8d - Reverting controller changes

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changed the description

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• 2f7c3de2 - Undoing config list chape change

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Removed the MR description because it led @f.mazeikis down the path of implementing that rather than implementing @effulgentsia's proposal in comment 20 https://www.drupal.org/project/experience_builder/issues/3498419#comment-15989118. This explains why !535 (comment 466884) happened.

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• 85600e8a - Switch to using enum for library id

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added 1 commit

• 098c4930 - Minor rename

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