Merged in feature/reimbursement-primary-optimizization (pull request #428)

Fix load_embeddings()

* move datetime_str function to string_utils module

* enhance load_embeddings to create directory structure and handle download errors

* Merged main into feature/reimbursement-primary-optimizization


Approved-by: Katon Minhas

fieldExtraction/src/utils/string_utils.py

@@ -1,3 +1,4 @@
+from datetime import datetime
 import json
 import re
 import warnings
@@ -323,3 +324,7 @@ def get_exhibit_chunk(text_dict: dict,
         - It is important that `exhibit_page` exists as a key in the `exhibit_chunk_mapping` dictionary and corresponds to the starting page of an exhibit.
     """
     return '\n'.join([page_text for page_num, page_text in text_dict.items() if exhibit_chunk_mapping[page_num] == exhibit_page])
+
+
+def datetime_str():
+    return datetime.now().strftime("[%Y-%m-%d %H:%M:%S]")