Backfill script

Purpose of this ticket is to identify what is the status of Backfill script today. Is it been run/executed in the past or there is more work to be done to do so. This will involve quite a bit of testing to make sure it is working as expected.

Please check with Doug Lovett as he has worked on backfill script.

Here is the link to [knowledge transfer](https://bcgov.sharepoint.com/:v:/r/teams/07717/Shared%20Documents/Entities%20-%20Reporting/Entities%20-%20Data%20Migration/Recordings/Backfill%20data%20loading.mp4?d=w8c7f8d985d3046efb62ef381cd49f535&csf=1&web=1&e=6qQt8t) recording.

[Related doc from the recording](https://bcgov.sharepoint.com/:b:/r/teams/07717/Shared%20Documents/Entities%20-%20Reporting/Entities%20-%20Data%20Migration/corporations/dev%20docs/Data%20Migration%20Pipeline%20Plan.pdf?d=wbdcb78d915f04f5bb4b536157df30cc1&csf=1&web=1&e=Ht5WAF)

Please add finding in this ticket and create required tickets after the analysis is complete.