EZP-23396: implement visitor for FullText criterion
EZP-23396: added meta_all to field doc and disabled root doc _all
EZP-23396: adapt fixture for ES fuzzy match
EZP-23396: added FullText test fixtures
Merge pull request #1051 from ezsystems/impl-EZP-23396-elasticsearch-fulltext

Implement EZP-23396: Elasticsearch: Implement Fulltext criterion for Content search