Resolve #3526959 "Add back missing"

Closes #3526959

added 3 commits

• 3b60fa7d - Remove useless test
• a32ff204 - Backport ArrayExtension
• 0fdf209d - Add custom DateExtension

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added 4 commits

• 55392893 - Backport TextExtension
• 32b6ac1d - Remove unnecessary composer.json
• 80cf2b20 - Change the requirements check to a check triggered by the relevant Twig filters
• 7467644c - Update README

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merged