Resolve "CRNSDataHub - data archiving and saving"

Description

A clean way to close down the and save the data that has been processed. Leave room for expansion (i.e., journalist class)

Related Issue

Closes #42 (closed)

Proposed Changes

• Save the key data into a csv format
• Options for save types?
• DataAuditLog close down and save into same place

Checklist

• I have tested the changes thoroughly
• I have updated the relevant documentation
• I have added necessary comments and explanations in the code
• I have considered backward compatibility, if applicable
• I have reviewed the code changes myself