[FEATURE] Add possibility to create TRIM expression with Doctrine DBAL

This adds the possibility to create TRIM expressions using the
ExpressionBuilder like shown in the following example:

$queryBuilder->expr()->comparison(
    $queryBuilder->expr()->trim($fieldName),
    ExpressionBuilder::EQ,
    $queryBuilder->createNamedParameter('', \PDO::PARAM_STR)
);

Resolves: #79262
Releases: master
Change-Id: I7813e8a1b0a38ec36797dfbb4fdb02ab78ebe8b2
Reviewed-on: https://review.typo3.org/51255


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Reviewed-by: Susanne Moog <susanne.moog@typo3.org>
Tested-by: Susanne Moog <susanne.moog@typo3.org>