[BIZ-2055] Add worklog script

This MR adds a copy of the worklog upload script to the repository, as well as a 'reference scripts' directory for any scripts that may follow in the pattern of specialized, ad-hoc scripts like this one.

JIRA tickets: https://tasks.opencraft.com/browse/BIZ-2055

Discussions: https://forum.opencraft.com/t/updating-time-logs-from-the-previous-month/1047

Dependencies: !31

Sandbox URL: TBD - sandbox is being provisioned.

Merge deadline: "None" if there's no rush, "ASAP" if it's critical, or provide a specific date if there is one.

Author notes and concerns:

This script probably shouldn't be tested since so far it only seems to work with the production account. I've tried reproducing it on a test account but this requires setting up accounts to mirror our production accounts, and it fails there. The only changes have been some minor linting improvements (removing unused imports and improving spacing). Otherwise the script is exactly as it was.

Also, do we know of any other scripts that should be included while we're at it?