Add concept vectorizer files in a separate directory

ConceptVectorizer/CV_config.json

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+{"model_path_or_model_obj": "sagteam/rubert-base-cased-mcn", "thesaurus_path": "./Data/External/pt_rus.asc", "use_model": false, "use_cuda": true, "path_to_thesaurus_embeddings": "./rubert-base-cased-mcn/ConceptVectorizer/thesaurus_embeddings_meddra_origin.pt"}