Request: Shrink on save

[JohnLBevan]

I really like the shrink functionality and the csv_lint_detect_trailing_spaces option; these help avoid issues when working with CSVs which will be consumed by terraform (as its csvdecode function doesn't understand/support spaces by delimiters).

It would be great if I could update my workspace settings to automatically run shrink on my CSV files when I save them; much in the way the files.trimTrailingWhitespace setting works. This setting should be configurable and off by default to avoid surprising anyone, but being able to enable it would help streamline the process of working with CSVs in scenarios where all CSVs in a workspace need to meet an expected format.

Thank-you in advance, and thanks for developing this awesome extension.