Added duplicate field check and Google Sheet protections check. Creat…

[bdgregg]

…ed a separate script to check a Google Sheet for protections that hinder updating by the service account.

[ctgraham]

For Google Sheet checks, the standalone tool feels very duplicative to the added function in scan-batch-dir. It adds in additional human-readable description, but this could also be done by a common library, or by the scan-batch-dir calling the standalone tool and using machine readable outputs (e.g. exitcodes).

This isn't a request for changes necessarily, but rather a reminder to keep things DRY as a priority.

The duplicated column code is straightforward.

[bdgregg]

@ctgraham , Yes I agree the standalone tool is duplicative, but thought there might be times where we want to check this outside of scan-batch-dir. I agree that the functions could be added to a common library - when I get to that.

[ojas-uls-dev]

One way to deduplicate the code would be to take in a command line argument of --check-sheet-permissions as a command line argument for scan-batch-dir and executing the code for main of check_sheet_protections.py when that argument is passed.