add search recipes

[prasmussen15]

[!IMPORTANT] Add new hybrid search configurations with cross encoder reranking for edges, nodes, and communities in search_config_recipes.py.

• New Search Configurations:
  • Adds EDGE_HYBRID_SEARCH_CROSS_ENCODER to perform hybrid search over edges with cross encoder reranking, using bm25, cosine_similarity, and bfs methods, with a limit of 10.
  • Adds NODE_HYBRID_SEARCH_CROSS_ENCODER to perform hybrid search over nodes with cross encoder reranking, using bm25, cosine_similarity, and bfs methods, with a limit of 10.
  • Adds COMMUNITY_HYBRID_SEARCH_CROSS_ENCODER to perform hybrid search over communities with cross encoder reranking, using bm25 and cosine_similarity methods, with a limit of 3.

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