fix: Harden set form type against null issues
fix: Add returning info array for getInfo on many field types
fix: Deep-array multienum form fields like [type][typeStates] = [2, 3, 4] work again with getInfo()
fix: Refactor getInfo to work with return values rather than updating by reference. Prepare for a result object to be passed. Provide unit test to demonstrate basic functionality.
ci: Modernize pipeline setup for phpunit 12 and phpstan.
fix: Apply php-cs-fixer
fix: Remove reference from signatures.