Add toArray/fromArray helpers for a couple of classes #3546

Job	Run time
PHP-Linter (8.5) / linter	16s
PHP-Linter (8.3) / linter	15s
Linter / yaml-linter	5s
PHP-Linter (8.4) / linter	15s
Linter / json-linter	30s
Linter / ecmascript-linter	0s
Linter / style-linter	0s
Unit tests, PHP 8.3, ubuntu-latest	24s
Unit tests, PHP 8.4, windows-latest	1m 0s
Unit tests, PHP 8.3, windows-latest	58s
Unit tests, PHP 8.4, ubuntu-latest	25s
Unit tests, PHP 8.5, windows-latest	58s
Unit tests, PHP 8.5, ubuntu-latest	34s
Code coverage	0s
Security checks	0s
Quality control	0s
Cleanup artifacts	0s
	5m 40s

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