Support for additional properties for search.

Currently we offer limited values for existing search.

We should support more values based on these docs - https://weaviate.io/developers/weaviate/search/bm25
https://weaviate.io/developers/weaviate/search/hybrid

params -

1. Show bm25 score instead of cosine similarity

2. Search on selected properties only

3. Use weights to boost properties

4. limit results to groups of similar distances to the query, use the autocut

5. Filter results

6. Explain the search results for hybrid search

7. Change the fusion method for hybrid search