add missing usage of the apply_filters results on searcher_query and sea...

add missing usage of the apply_filters results on searcher_query and searcher_search.
Because this should be possible:
https://github.com/parisholley/wordpress-fantastic-elasticsearch/wiki/Wordpress-Filters
elasticsearch_searcher_query (\Elastica\Query $query) - """Modify""" elastica client query object before execution
elasticsearch_searcher_search (\Elastica\Search $query) - """Modify""" elastica client search object before execution