add class to read all contacts' emails

src/person_name/contact_manager.py

@@ -0,0 +1,13 @@
+from src.db.mongo_manager import MONGO_STORE_MANAGER
+from src.utils.excel_reader import ExcelHelper
+
+
+def upload_contacts_list():
+    excel_helper = ExcelHelper()
+    contacts_to_book = excel_helper.read_contacts("/Users/lpan/Desktop/yahoo_aol.xlsx")
+    return contacts_to_book
+
+
+if __name__ == '__main__':
+    contacts_to_book = upload_contacts_list()
+    MONGO_STORE_MANAGER.upload_contact_list(contacts_to_book)