use the already used constant for match no filter
Better logic ignoring filters when parsing
When parsing a filter, we effectively have a case where we need to ignore a filter. For example, when an "and" filter has no elements. Ignoring a filter is different compared to matching on all or matching on none, because an and filter with no elements should simply be ignored in the context of a bool filter for example, regardless if its used within a must or a must_not filter.

We should be consistent in our codebase when handling these use case. See also #3809

closes #3838
[DOCS] Added pages explaining lucene query parser syntax and regular expression syntax