Dispatch custom event on filterQueryBuilder

[YosraHamza]

Hello, Thanks for the great bundle.

I was thinking about adding some cases to the list filterQueryBuilder or changing the generated dql string, for example if a custom event ( something like BEFORE_FILTER_FIELD ) is called with the filter field data before applying the dql part to the query builder so that I can format the value before applying it or call some sql functions in the dql string in my event listener. Is that possible ?