fixed code style issues

src/Aggregation/TopHitsAggregation.php

src/BuilderBag.php

src/Highlight/Highlight.php

src/NameAwareTrait.php

src/Query/BoolQuery.php

src/SearchEndpoint/AbstractSearchEndpoint.php

src/SearchEndpoint/AggregationsEndpoint.php

src/SearchEndpoint/FilterEndpoint.php

src/SearchEndpoint/HighlightEndpoint.php

src/SearchEndpoint/PostFilterEndpoint.php

src/SearchEndpoint/QueryEndpoint.php

src/SearchEndpoint/SearchEndpointInterface.php

src/SearchEndpoint/SortEndpoint.php

src/Sort/FieldSort.php

tests/BuilderBagTest.php

tests/SearchEndpoint/AggregationsEndpointTest.php

tests/SearchEndpoint/FilterEndpointTest.php

tests/SearchEndpoint/HighlightEndpointTest.php

tests/SearchEndpoint/PostFilterEndpointTest.php

tests/SearchEndpoint/QueryEndpointTest.php