BAZYNGO-352 Add interface for searching over index.
BAZYNGO-352 Add simple implementation.
BAZYNGO-352 Add interface for doing searches using searcher.
BAZYNGO-352 Add SearcherManager which manages IndexSearcher instance.
BAZYNGO-352 Add method to get all field names.
BAZYNGO-352 Implement search method.
BAZYNGO-352 Add contract
BAZYNGO-352 Implement contract as simple delegate.
BAZYNGO-352 Add javadoc and throws.