LPS-43180 Add FieldSelector support in LuceneIndexSearcher.
LPS-43180 Add support to search with selectedFields.
LPS-43180 Add concrete logic to AssetIndexer.
LPS-43180 Apply search with selectedFields in AssetUtil.
LPS-43180 Fix text.
LPS-43180 Deprecate unused method.
LPS-43180 Source formatting
LPS-43180 Rename Indexer.getEntries to Indexer.getSearchResults, no changes.